An ecosystem is formed by the interaction of a community of organisms with their physical environment.
An ecosystem, also known as an ecological system, is made up of all the organisms and the physical setting in which they live. The nutrition cycles and energy flows connect these biotic and abiotic elements. Photosynthesis is how energy enters the system and is absorbed by plant tissue.
Animals play a significant part in the transfer of materials and energy through the system by eating plants and one another. They also have an impact on the biomass levels of the microbial and plant communities. In addition to facilitating nutrient cycling by transforming nutrients held in dead biomass back into a form that can be easily utilized by plants and microorganisms, decomposers also release carbon into the atmosphere through the breakdown of dead organic matter.
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when protein provides energy, the body must eliminate the containing amine group and other solutes from protein breakdown. True or False
It is true as when protein provides energy, the body must eliminate the nitrogen-containing amine group as well as other waste products from protein breakdown through the process of deamination. The resulting nitrogen-containing waste is eliminated from the body in the form of urea, which is excreted in the urine.
What is protein?Proteins are huge biomolecular and macromolecular structures made up of one or more long chains of amino acid residues. Proteins are required for life and are required for a variety of biological processes. The vast majority of chemical processes in the cell are catalyzed by protein enzymes. Proteins supply many of the structural features of a cell and aid in the fusion of cells into tissues. Proteins defend animals from sickness in the form of antibodies, and many hormones are proteins. Proteins regulate gene expression and modulate gene activity.
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primates can be distinguished by a single trait. in other words, there is one trait that, if found, can identify an animal as a primate. true or false
It is false as primates cannot be distinguished by a single trait. There are several characteristics that are used to identify primates, including having opposable thumbs, forward-facing eyes, and a large brain relative to body size.
What is gene?Genetics is the study of genes, genetic variation, and heredity in organisms. It is a critical topic in biology since heredity is vital to organism evolution. In the nineteenth century, Gregor Mendel, a Moravian Augustinian monk working in Brno, was the first to do scientific study on genetics. The basic unit of inheritance that is passed down from parent to child. Genes are composed of DNA sequences that are progressively ordered in the nucleus of cells at certain chromosomal regions.
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The autosomal recessive human disorder albinism (type I) is caused by a mutation in the gene for _______
The autosomal recessive human disorder albinism (type I) is caused by a mutation in the gene for the X chromosome.
Type 1 ocular albinism is the most widespread type. An alteration in the X chromosome gene causes this kind to be passed on. A mother who carries one altered X gene to her kid may pass on X-linked ocular albinism. We refer to this as X-linked recessive inheritance.
Type I Oculocutaneous Albinism Linked to Tyrosinase Gene Full-Length Deletion. Due to insufficient tyrosinase activity, type I oculocutaneous albinism is an autosomal recessive condition in which melanin manufacture in the skin, hair, and eyes is limited or nonexistent.
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Assume you have mutagenized a liquid culture of yeast cells and you plate them for single cells on rich media. A few days later you find many colonies on the plate.which true/false based on information answer the following two question?i) All the cells in any given colony on your plate are genetically identical.ii) The cells in one colony are genetically identical to the cells in each of the other colonies
i) Is True that all the cells in any given colony on your plate are genetically
ii) It is False that The cells in one colony are genetically identical to the cells in each of the other colonies
i) All the cells in any given colony on your plate are genetically identical. This is because each colony originates from a single cell that has undergone replication and division. As the cells divide, they pass on the same genetic information to their progeny, resulting in a clonal population of genetically identical cells.
ii) The cells in one colony are not necessarily genetically identical to the cells in each of the other colonies. This is because the mutagenesis process has likely resulted in genetic variations among the original yeast cells. When these cells undergo replication and division, the genetic variations are passed on to the progeny, leading to the formation of genetically distinct colonies. Therefore, it is possible for different colonies to have different genetic profiles, even though they are all derived from the same original culture of yeast cells.
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Studying a the sediment layers in a rock formation, a biologist can assume that the organisms found in the upper layers
Question 11 options:
are relatively older than those found in lower layers
are exactly 3.2 million years older than an organism found 3.2 meters lower
you cannot tell anything about the relative age of a fossil
are relatively younger than those found in lower layers
A biologist can estimate that the creatures found as in upper layers of silt inside a rock formation are precisely two million years old than an organism located 3.2 meters beneath.
What do the layers of rock reveal?Fossils found in rock layers are proof of previous landscapes on Earth. It is difficult to estimate the date of rock. To discover how distant past rocks formed, scientists must solve a problem like a detective. Scientists can identify the age of a rock by looking for fossils in a particular layer of rock.
Why may it be assumed that older rock strata layers can be found beneath newer sedimentary rock layers?the scientific idea that, in horizontal strata of bedrock, each layer, if left undisturbed, is older than that of the one above and newer than that of the layer below it.
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What would happened to a species, if they reproduced sexually but only underwent mitosis and not meiosis?
Answer:
If a species only underwent mitosis and not meiosis, they would not experience genetic recombination and diversity, leading to a lack of adaptation to changing environmental conditions. Over time, the species would become increasingly vulnerable to diseases and environmental pressures, potentially leading to its extinction. Additionally, without meiosis and its associated reduction of chromosome number, the number of chromosomes would increase with each generation, potentially causing problems with cellular function and viability.
Robert decides to go for a run when he gets home from school. As he begins running, his breathing rate starts to increase. What are the mechanisms that cause his breathing rate to increase?
A.
When oxygen levels in the blood decrease, the respiratory center sends signals to the diaphragm to increase the rate at which it contracts and relaxes.
B.
The diaphragm senses the need for more oxygen, which causes it to expand and contract more quickly in order to inflate and deflate the lungs.
C.
The respiratory control center senses the need for more oxygen, which causes the trachea to push and pull air more forcefully.
D.
When carbon dioxide levels in the blood decrease, the respiratory center sends signals to the alveoli to increase the volume that they expand.
When carbon dioxide levels in the blood decrease, the respiratory center sends signals to the alveoli to increase the volume that they expand causing to increase in the breathing rate of Robert.
What is the mechanism for high breathing rates?The respiratory center (in the medulla) sends nerve impulses to the external intercostal muscles and the diaphragm to speed up breathing and expand the lungs during inhalation in response to a drop in blood pH.
Ventilation is increased when a rise in pCO₂ is detected. As more CO₂ is breathed, the pCO₂ drops and stabilizes. Ventilation is reduced when a drop in pCO₂ is detected,
Therefore, option D is correct.
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what would happen to the gametes (egg or sperm) of an individual in which disjunction did NOT occur properly during meiosis? HINT: There are two possibilities
Answer:
the egg and sperms of an individual's during the reproduction occures
A pedigree diagram expresses the relationships of individuals, their gender, and the presence / absence of a specific trait. To be of much use in a genetic analysis, the pedigree must include several generations, preferably from a family with many children.
Objectives:
To familiarize students with the construction of human pedigrees. Students will apply their knowledge of inheritance patterns to pedigrees. Students will identify the relationships between individuals in a pedigree and determine what inheritance pattern is present in a family based on which individuals in the pedigree are affected and unaffected. Then students will assign individuals who are represented in a pedigree genotypes based on clues they interpret from the pedigree.
Pedigrees 1 - 5 can be found in the WORD or PDF files below this assignment in the weekly Moodle block
Consider the pedigree for cystic fibrosis. (See Pedigree 1.) An autosomal recessive gene (f) causes serious respiratory difficulties that usually lead to death of afflicted people by their late 30’s.
The generations are indicated by the Roman numerals on the left side of the pedigree. The members of each generation (related or not) are indicated by Arabic numbers. Females are represented by circles and males are represented with squares. Individuals with cystic fibrosis are shaded gray (or black). Thus, the 2 affected individuals are those in the 3rd generation: III-2 and III-4.
You have already learned about the inheritance pattern of CF. However, you could have inferred it from the pedigree. Because the disease only affects siblings in one generation, the disease is most likely to have autosomal recessive inheritance.
Because we know that cystic fibrosis is autosomal recessive, we can write the genotypes (entirely or in part) of all of the individuals in this family tree. Recessive homozygous individuals (ff) express the disease. Each normal individual has at least 1 dominant allele (F). We know that the individuals II – 2 and II – 3 are heterozygous (because this couple has a child with CF). The genotypes of the other 2 individuals in generation II can only be written as F_ because we do not know if they are FF or Ff.
QUESTIONS:
1. Using pedigree 1, list all of the possible genotypes of these individuals:
HINT: the easiest way to do this is to write letters (alleles) in, on the pedigree, for the people you know for sure. In this case, write the genotype that is homozygous recessive under the affected people. Then write out the genotypes of other individuals that you can infer. After you have filled in the genotypes on the pedigree, then fill out this chart.
Individual Genotype
I-1
I-2
I-3
I-4
II-1
II-2
II-3
III-1
III-2
III-3
III-4
III-5
2. Look at PEDIGREE #2. Do you think the trait shown is autosomal dominant or autosomal recessive? List all of the characteristics of the pedigree that justify your answer.
Use the letters "B" and "b" for the alleles.
3. What is the most likely genotype of individual I-2?
4. What does the notation like an upside-down T between II-3 and II-4 mean?
5. What is the chance that III-3 will have an affected child?
6. What is the chance that III-4 will have an affected child?
7. What is the genotype of individual III-2?
The family depicted in PEDGIREE #3 has some individuals with achondroplasia, a form of dwarfism. Note: (1) The homozygous dominant genotype is lethal; unfortunately infants with this genotype have such small ribs they cannot breathe at birth. (2) All of the people in the pedigree who have the dominant allele have the express the achondroplasia phenotype.
8. For each of the Genotypes listed below write every individual in pedigree 3 that has that genotype (Write then as “I-1, I-2, etc):
Individuals with genotype "AA"
Individuals with genotype "Aa"
Individuals with genotype "aa"
Individuals with genotype "AA" or "Aa"
Individuals with genotype "Aa" or "aa"
9. Look at Pedigree 4. Do you think the trait shown is autosomal dominant or autosomal recessive or something else? List all of the characteristics of the pedigree that justify your answer.
10. Look at Pedigree #5. What does the double line between individuals III-2 and III-3 indicate?
11. What inheritance pattern is present in pedigree #5?
12. Why are III-2 and III-3 in pedigree #5 more likely to have an affected child?
The pedigree diagram can be used to determine relationships.
What is a pedigree diagram?A pedigree diagram is a graphical representation used to track the inheritance of a particular trait or condition within a family. It typically shows the relationships between family members and the presence or absence of the trait in question.
In a pedigree diagram, individuals are represented by symbols such as circles (for females) or squares (for males), and lines connecting the symbols represent genetic relationships (e.g., parent-child, sibling, etc.).
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Yogurt cheese and other foods are produced through alcoholic fermentation. True or false
The statement "Yogurt cheese and other foods are produced through alcoholic fermentation" is True.
What is alcoholic fermentation?Alcoholic fermentation is the name for the chemical reaction that results in alcohol. The fundamental step in this process is yeast eating a specific sort of sugar, and this is how beer, wine, sake, and cider all start.
Even alcoholic beverages that are considered hard, like your favorite tequila, start with a simple alcoholic fermentation.
Three main byproducts are created during the fermentation of alcohol. Unsurprisingly, one of them is alcohol, which has traditionally been a key ingredient in beer, wine, and hard cider.
In light of this, it is true that yogurt cheese and other foods were generated by alcoholic fermentation.
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the similar structure of butterfly wings and hawk wings is an example of [ select ] traits, which are the result of [ select ] .
The similar structure of butterfly wings and hawk wings is an example of convergent evolution, which are the result of natural selection.
What is genetics?The study of genes, genetic diversity, and heredity in organisms is known as genetics. It is a significant field of biology since heredity is essential to the evolution of organisms. Gregor Mendel, a Moravian Augustinian monk working in Brno in the nineteenth century, was the first to do scientific research on genetics.
Here,
Convergent evolution is a process by which unrelated species evolve similar structures or adaptations in response to similar environmental pressures. This can result in the development of analogous structures, which have similar form or function but have a different evolutionary origin.
In this case, the wings of both butterflies and hawks have a similar structure because they are adaptations for flight, but the wings evolved independently in each species. The convergence of these structures is the result of natural selection, which favors traits that increase an organism's chances of survival and reproduction in a particular environment.
Overall, the similarity of butterfly wings and hawk wings is a clear example of how natural selection can drive the evolution of analogous structures in unrelated species.
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Dialysis tubing is a cellulose material used to make model cells for experiments in osmosis and diffusion. These model cells do not use living cell membranes. A student made a model cell by pouring distilled water into some dialysis tubing. The student placed the model cell in a salt solution and waited 10 minutes. The cell was then removed from the salt solution and the contents were poured into the test tube. The student added silver nitrate to the test tube and a white precipitate formed. This indicated that chloride ions had entered the cell. Would this be true for living cell membranes? Design an experiment to test this.
Experiment:
Materials:
-Living cell membrane (from a plant or animal cell)
-Dialysis tubing
-Salt solution
-Test tube
-Silver nitrate
Procedure:
1. Place the living cell membrane in the dialysis tubing.
2. Submerge the dialysis tubing with the cell membrane into the salt solution and wait for 10 minutes.
3. Remove the dialysis tubing from the salt solution and pour the contents into the test tube.
4. Add silver nitrate to the test tube and observe the results.
5. Record the observations and compare with the results of the experiment using the dialysis tubing.
Expected Results: If chloride ions have entered the living cell membrane, a white precipitate should form when the silver nitrate is added to the test tube.
What is Dialysis tubing?Generally, Dialysis tubing is a type of semi-permeable membrane tubing used in a lab setting to separate molecules in solution based on their size. It is commonly used to separate proteins from small molecules and to purify DNA and RNA molecules.
The tube is made from cellulose, which allows molecules smaller than the pore size to pass through the membrane while larger molecules are retained.
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The group in an experimental study that is a reference differing from the test group in only one way is the _________ group.
Question 3 options:
placebo
uncontrolled
validation
control
Explanation:
It would be a control group as the control group is the baseline group to compare the other findings too, as a control group is a controlled group with no changing variables.
A population of 40 guinea pigs undergoing natural selection is reduced to 20 individuals in only five generations. At this point genotype frequencies are 0.25, 0.5, and 0.25 for the genotypes AA, Aa, and ag, respectively. Assume that natural selection continues to act on this population. Is the population in Hardy-Weinberg equilibrium? Why or why not?
No, the population is not in Hardy-Weinburg equilibrium because the populations described here are being subjected to natural selection and does not have a large size.
The Hardy-Weinberg principle presupposes that a population is sizable and not undergoing natural selection, sexual selection, migration, or mutation, and have a large population. Even though no population in the real world can meet all of these requirements, the concept nonetheless provides a valuable framework for population analysis. As the population of pigs in the query is reduced and is undergoing natural selection, the population is not in equilibrium.
According to the Hardy-Weinberg principle, a population's genotype and allele frequencies will not change in the absence of any evolutionary processes. p + q = 1, where p is the frequency of the dominant allele and q is the frequency of the recessive allele, can be used to calculate the frequency of alleles in a population.
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what is the process whereby epsps and ipsps interact to yield a net result of either excitation or inhibition.
The process by which EPSPs and IPSPs interact to produce a net result of excitation or inhibition is known as synaptic integration.
Synaptic integration refers to the summation of excitatory postsynaptic potentials (EPSPs) and inhibitory postsynaptic potentials (IPSPs) at the postsynaptic membrane of a neuron.
EPSPs are caused by the release of neurotransmitters that bind to receptors on the postsynaptic membrane and result in an influx of positively charged ions, leading to depolarization and an increase in the likelihood of an action potential being generated.
IPSPs, on the other hand, are produced by neurotransmitters that bind to receptors that result in an efflux of positively charged ions, leading to hyperpolarization and a decrease in the likelihood of an action potential being generated. The net result of the interaction between EPSPs and IPSPs will determine whether the neuron is excited or inhibited.
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Which of the following research questions would best guide an investigation of the link between the structure of the signaling molecules and the evolution of quorum sensing? A. Do these molecules require the same receptors in each bacteria species to generate a response? B. Did these species evolve from a common ancestor that used a similar signaling molecule? C. Do these species all perform the same action when the concentration of the signaling molecules is high enough? D. Did these species evolve from the same common ancestor that is still living today and uses the same receptors?
Option A is Correct. Do these molecules require the same receptors in each bacteria species to generate a response. The grass needs energy input from sunshine in order to develop and keep its organized structure.
The following research questions would be the most useful for directing an inquiry into the relationship between the structure of the signaling molecules and the evolution of quorum sensing.
Because there is less genetic diversity in the smaller population than there is in the larger population, the smaller population will be more influenced than the bigger group. Adenosine triphosphate (ADP) and inorganic phosphate (Pi) are converted into ATP during chemiosmosis by the proton motive force, which is the passage of ions across the membrane (adenosine triphosphate).
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In which of the following scenarios would evolution most likely occur?
Question 13 options:
a hawk prefers tan colored mice over dark gray mice
a breed of dog can have three different alleles for fur color
within a small population of skunks, two die of disease
within a large population of fish, one is caught by a fisherman
Answer/Explanation:
A hawk prefers tan-colored mice over dark-gray mice. This could trigger evolution because if hawks prefer tan-colored mice over dark-gray mice, the mice will evolve into dark-gray mice. This will help the overall species of mice.
Which of the following affects the rate of diffusion through a selectively permeable membrane?
I. concentration gradient
II. temperature
III. molecular size
The correct answer is I) concentration gradient, II) temperature and III) molecular size.
1. Concentration gradient: the greater the concentration gradient (the difference in concentration between two areas), the faster the rate of diffusion. Molecules will move from an area of higher concentration to an area of lower concentration until equilibrium is reached.
2. Temperature: the higher the temperature, the faster the rate of diffusion. This is because molecules have more kinetic energy at higher temperatures, which allows them to move and diffuse more rapidly. third
3. Molecular size: smaller molecules can diffuse faster than larger molecules. This is because smaller molecules can move more easily through the pores of a selectively permeable membrane.
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After meiosis I, the chromosome number in primary oocyte has doubled / remained the same / reduced half (circle your answer). At the end of meiosis I, sister chromatids are still connected al centromeres because unlike milusis, centromeres do not divide in anaphase 1 of meiosis.
The chromosome number in the primary oocyte has reduced by half after meiosis I. At the end of meiosis I, the sister chromatids separate and are no longer connected at the centromeres as the centromeres do divide in anaphase I of meiosis.
What is meiosis?Meiosis is a type of cell division that results in the formation of gametes, such as sperm and eggs, with half the number of chromosomes as the parent cell. This reduction in chromosome number is necessary for the proper formation of offspring during fertilization, as the resulting zygote will have the normal diploid chromosome number for the species.
Meiosis occurs in two distinct stages, called Meiosis I and Meiosis II, that each involve two rounds of chromosome division. During Meiosis I, homologous chromosomes pair up and exchange genetic material, a process called crossing over. Then, in anaphase I, the sister chromatids separate and are distributed to opposite poles of the cell. In Meiosis II, the chromosomes separate, and the cells divide, producing four haploid daughter cells.
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Explanation:The interactions between proteins and DNA are dynamic and rely on weak interactions, including hydrogen bonding, ionic interactions, and van der Waals interactions. Covalent linkages are stronger and would prevent release of the binding partners, which could lead to inactive proteins and could inactivate genes. A combination of these weak interactions leads to the specific interaction between a DNA sequence and a protein, such as that between the lac repressor and its DNA binding site.Which of the following interactions it NOT likely to be found between the lac repressor protein and its DNA binding partner?A. van der Waals interactionsB. Ionic interactionsC. Hydrogen bondingD. Covalent linkages
Covalent linkages are NOT likely to be found between the lac repressor protein and its DNA binding partner. The answer is D.
Covalent bonds are strong and permanent chemical bonds, which means they cannot be easily broken. This would prevent the release of the binding partners and could lead to inactive proteins and inactivated genes.
In contrast, the interactions between proteins and DNA are dynamic and rely on weak interactions, including hydrogen bonding, ionic interactions, and van der Waals interactions, which allow for the release of the binding partners and allow the proteins to be active.
Covalent linkages are generally not used in the specific interaction between a DNA sequence and a protein because it would restrict the protein's mobility and ability to interact with other partners.
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Your question seems incomplete, but I suppose the question was:
"Explanation:The interactions between proteins and DNA are dynamic and rely on weak interactions, including hydrogen bonding, ionic interactions, and van der Waals interactions. Covalent linkages are stronger and would prevent release of the binding partners, which could lead to inactive proteins and could inactivate genes. A combination of these weak interactions leads to the specific interaction between a DNA sequence and a protein, such as that between the lac repressor and its DNA binding site.
Which of the following interactions it NOT likely to be found between the lac repressor protein and its DNA binding partner?
A. van der Waals interactions
B. Ionic interactions
C. Hydrogen bonding
D. Covalent linkages"
what are the characteristics of smooth muscle tissue?
Answer:
see below
Explanation:
Smooth muscle tissue is characterized by its ability to contract, but only when stimulated by nerve fibers. The contraction of smooth muscle tissue is usually not sustained, but it can be maintained for long periods of time.
The composition of smooth muscle tissue is also different from that of skeletal and cardiac muscle. Smooth muscle cells lack the striations seen in other types of muscle, and they do not contain myofibrils like skeletal or cardiac muscles do. Instead, smooth muscle cells are composed primarily of actin and myosin filaments arranged in a pattern that allows them to contract.
Panner, B. J., & Honig, C. R. (1970). Locus and State of Aggregation of Myosin in Tissue Sections of Vertebrate Smooth Muscle. The Journal of Cell Biology, 44(1), 52–61. http://www.jstor.org/stable/1605771
baby rina is a newborn. based on her study of child and adolescent development, rina's mother knows that rina's brain will not be fully developed until she is
Baby rina is a newborn. based on her study of child and adolescent development, rina's mother knows that rina's brain will not be fully developed until she is at least 20 year(s) of age.
Why is a baby's brain so pliable or "plastic"?Extra synaptogenesis enables the usage of extra neurons in other areas. The brain can change itself by creating fresh neural connections as a result of experience.
Why is the term "plastic brain" used?Because neurons may form new or stronger connections with other neurons, our brains are renowned for being "plastic" or flexible. However, if some connections get stronger, neurons must make up for it to avoid being overloaded with information, according to neuroscientists.
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Full Question = Baby Rina is a newborn. Based on her study of child and adolescent development, Rina's mother knows that Rina's brain will NOT be fully developed until she is _____ year(s) of age.
Explain why aerotolerant and microaerophilic microbes can't survive high oxygen levels but they can survive low levels.
Answer:
it’s A
Explanation:
Which statement is true
An animal cell does not have a Golgi, but a plant cell can have a Golgi.
The cytoplasm of an animal cell is inside the cell membrane.
In animal cells, lysosomes break down waste and worn-out cell parts.
Answer:
The cytoplasm of an animal cell is inside the cell member
T/F micelles, made of bile salts, have hydrophilic and hydrophobic regions that allow them to emulsify fats and dissolve in water.
The given statement is true. Micelles, which are spherical structures made of bile salts, have both hydrophilic and hydrophobic regions.
In the digestive system, bile salts are secreted by the liver into the small intestine, where they help to emulsify fats in the chyme (the mixture of partially digested food and digestive juices). The hydrophobic ends of the bile salts surround the droplets of fat, while the hydrophilic ends face outwards and dissolve in the watery environment of the intestine. This creates tiny droplets of fat, known as micelles, that are more readily soluble in water.
The micelles can then be taken up by the enterocytes, the absorptive cells that line the small intestine, where they are further broken down by lipases and other digestive enzymes into fatty acids and monoacylglycerols. These molecules can then be absorbed into the bloodstream and transported to cells throughout the body for use as a source of energy or for other metabolic processes.
Overall, the ability of micelles to emulsify fats and dissolve in water is critical for the efficient digestion and absorption of fats in the small intestine.
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Which of the following are NOT typical monomer arrangements in a polymer.
A. Ceramically
B. Branching
C. Crystalline
D. Lined-up
Answer:
A. Ceramically
Explanation:
Polymers can have various structures, and they are composed of repeating units called monomers. Some of the typical monomer arrangements in polymers are branching, crystalline, and lined-up. Ceramics are not a typical monomer arrangement in polymers because they are a completely different class of materials that have a different structure and properties.
which of the following includes all of the pyrimidines found in dna and rna? which of the following includes all of the pyrimidines found in dna and rna? (a) Cytosine and Thymine
(b) Cytosine and Uracil
(c) Guanine and Adenine
(d) Adenine and Thymine
Cytosine and Uracil includes all of the pyrimidines found in DNA and RNA that is option B.
What is DNA?Deoxyribonucleic acid (DNA) is a polymer made up of two polynucleotide chains that coil around one another to create a double helix. The polymer contains genetic instructions for all known organisms and viruses' genesis, functioning, growth, and reproduction. Nucleic acids include DNA and ribonucleic acid. The molecule found inside cells that holds the genetic information necessary for an organism's growth and function. DNA molecules enable this information to be handed along from generation to generation.
Here,
Pyrimidines are a class of nitrogenous bases found in both DNA and RNA. Cytosine and uracil are the two pyrimidines found in RNA, while thymine is found in DNA. The other pyrimidine found in DNA is cytosine.
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When exposed to air, the flesh of apples turn brown. Arctic apples are a result of introducing an anti-browning gene in the apple’s genetic makeup. Which technology was most likely used to produce the anti-browning property of the Arctic apple?
Answer: Genetic
Explanation:
The introduction of an anti-browning gene into the genetic makeup of apples would produce arctic apples in which the ability to resist browning was created through genetic engineering techniques. So, the correct option is C.
What are Genetically modified foods?Genetically modified (GM) foods are defined as foods that are derived from organisms whose genetic material (DNA) has been modified in a way that does not occur naturally, e.g. through the introduction of genes from a different organism.
The flesh of apples turns brown when exposed to air. To avoid this browning, Arctic apples are genetically modified (GE) which indicates that biotechnology methods were used to modify the genetic material that controls how the apple tree grows and develops.
So, the correct option is C.
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Your question is incomplete, most probably the complete question is:
When exposed to air, the flesh of apples turn brown. arctic apples are a result of introducing an anti-browning gene in the apple’s genetic makeup. which technology was most likely used to produce the anti-browning property of the arctic apple?
a. xeno transplantation
b. bt gene production
c. genetic engineering
d. half-life determination
In this assignment, you'll create a food chain for an ocean ecosystem. Listed below are five organisms found in an Estuary (body of water where a river meets the sea). Your task is to create a food chain with those five organisms and identify each organism’s role. Include producer (photoautotroph), herbivore, 1st level carnivore, 2nd level carnivore and apex predator. You can use text only to write out the food chain. As an option, you can create a drawing with labels, or a list using arrows and labels to show your food chain. Arrows and images are not required. In your text, make sure you explain the relationship between each organism. Estuary organisms: algae, sea lion, zooplankton, squid, salmon brainly
Food chain for an ocean ecosystem:
1) Algae (producer/photoautotroph)
2) Zooplankton (herbivore)
3) Squid (1st level carnivore)
4) Salmon (2nd level carnivore)
5) Sea lion (apex predator)
Being a producer, algae uses the energy from the sun's photosynthesis to create its own nourishment. Zooplankton consumes the algae in the estuary because they are herbivores. As first-level carnivores, squid consumes zooplankton. Salmon consume squid because it is a second-level carnivore. The top predators in this food chain are sea lions, who eat salmon.
What is an Ecosystem?A complex network of living and nonliving creatures that interact with one another in a particular environment is called an ecosystem. It is a self-sustaining system in which all living things and the environment in which they live work together to maintain equilibrium. The size of an ecosystem might vary from a tiny pond to a massive forest or ocean. An ecosystem's living creatures are all interdependent on one another in order to survive, and they all contribute significantly to keeping the system's delicate balance.
All the organisms and the physical setting they interact with make up an ecosystem. The nutrition cycles and energy flows connect these biotic and abiotic elements.
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