Answer:DNA
Explanation: DNA is the genetic material, contains genes, and resides in the nucleus
cells of the small intestine and kidney tubule have a region composed of , which are cell extensions that increase surface area.
Cells of the small intestine and kidney tubule have a region brush border composed of microvilli, which are cell extensions that increase surface area.
What is meant by microvilli?Microvilli on the surface of epithelial cells such as those lining the intestine increases surface area of the cell and thus facilitate absorption of ingested food and water molecules.
Microvilli is found in tightly packed arrays on the apical surfaces of polarized epithelial cells. It increase surface area of the cell exposed to the lumen to enhance absorption and secretion.
Microvilli are the finger-shaped plasma membrane protrusions that are found at surface of large variety of cell types but are most numerous and elaborated on simple epithelial.
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Which one of the following correctly describes the types of glucose transporter and the type of hexokinase in pancreatic b cells?
A. Low affinity GLUT2 transporter, high affinity Glucokinase
B. High affinity GLUT2 transporter, low affinity Glucokinase
C. Low affinity GLUT2 transporter, low affinity Glucokinase
D. High affinity GLUT2 transporter, high affinity Glucokinase
The following correctly describes types of glucose transporter and the type of hexokinase in pancreatic b cells : C. Low affinity GLUT2 transporter, low affinity Glucokinase.
What is meant by glucose transporter and hexokinase?Glucose transporter GLUT-4 and hexokinase II (HK II) are the main isoforms of proteins involved in the glucose transport and phosphorylation in insulin-sensitive tissues, adipose tissue, skeletal muscle and heart.
Hexokinases are intracellular enzymes that phosphorylate glucose, mannose and fructose to corresponding hexose 6-phosphates. Resulting phosphate esters can be broken down to pyruvate by glycolysis or used for different biosynthesis. Hexokinases plays an important role in control of glycolysis.
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Could a single part of a multicellular organism survive on its own? Explain.
Answer:
A single cell extracted from a multicellular organism cannot survive outside the organism on its own. All cells in multicellular organisms form a complex network of interactions between each other so that each of them has its own specific function essential for the survival of the others.
The International Food & Agricultural Trade Policy Council is in place to improve global trade relations. What is a specific task they focus on?
The International Food & Agricultural Trade Policy Council (IPC) is a global coalition of agribusinesses, farmers, and food and agricultural trade associations. Its primary goal is to promote open, equitable, and sustainable food and agricultural trade policies. One specific task that the IPC focuses on is providing research and analysis to inform policy discussions and negotiations among governments and international organizations, with the aim of advancing more effective and efficient trade policies. Additionally, the IPC advocates for a rules-based, market-oriented global trading system that benefits all countries and stakeholders.
the periodic table of elements contains 92 naturally occurring elements and a few more that have been artificially created. which of the following statements best describes elements?
Statement that best describes elements: D. Elements are substances that are made up of atoms.
Elements are the building blocks of matter, and all matter is composed of them. Each element is made up of atoms, which are the smallest particles that form a chemical element.
Atoms are composed of:
ProtonsNeutronsElectronsThe number of each type of particle determines the properties of the element.
There are 92 naturally occurring elements, and a few more that have been artificially created, that make up the periodic table of elements, which is a key tool used to study and classify the elements.
Here's the full task:
The periodic table of elements contains 92 naturally occurring elements and a few more that have been artificially created. Which of the following statements best describes elements?
Choose the right one:
A. Elements are substances that cannot be broken down into simpler substances.B. Elements are substances that can be broken down into simpler substances.C. Elements are substances that are made up of molecules.D. Elements are substances that are made up of atoms.Learn more about periodic table: https://brainly.com/question/15987580
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When testing specimens that may be contaminated with blood-borne or other pathogens, which of the following would apply?A. Use a mouth pipette to draw specimensB. Avoid working when you have cuts, lesions or sores on your handsC. Rock the stopper back and forth to transfer a blood specimen from one collection device to another
The correct answer when testing specimens contaminated with pathogens is B. Avoid working when you have cuts, lesions or sores on your hands.
Definition of PathogensPathogens are organisms that can cause health problems. Pathogens need a host inside the body to develop and survive. Once a pathogen has established itself in a host, it can evade the body's immune response to replicate and spread to new hosts.
Pathogens can attack the human body and cause disease when the immune system is weak. In addition, the entry of pathogens into the body can also come from wounds or injuries, consumption of contaminated food or drink, and close contact with sick people.
One of the most common causes of infection occurs due to exposure to pathogens in the body. Pathogen in the medical world is the term for germs that can cause various diseases. There are many types of pathogens that need to be known, ranging from bacteria, viruses, fungi, to parasites.
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Question 6 (1 point)
Advantages associated with genetically modified foods include all of the following
EXCEPT
universal consumer acceptance
greater resistance to spoilage
reduced use of pesticides
improved nutrition for consumers
Advantages associated with genetically modified foods include all of the following except greater resistance to spoilage
Why is food modified genetically?
The majority of genetically modified crops currently in use have been engineered to increase yield through the introduction of plant disease resistance or increased herbicide tolerance. As a result of increased yields and dependability, GM crops may potentially enable price drops in the food supply.
Because the "superior" features obtained by modifying genes can favor one organism, GM crops disturb the natural process of gene flow. It puts the environment, farmers, and trade at risk. It has a stronger tendency to marketize farming and focus on immoral gains.
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How does natural selection impact overproduction?
Answer: Overproduction is also known as a driving force in natural selection as it can lead to adaptation and variation in a species.
Explanation: All the species overproduce offspring, if they have more offspring they can realistically reach the reproductive stage, based on the resources available
The diagram below shows the branching tree diagram for humans. The text box below it shows the set of derived shared characteristics for the branching tree.
A slanting, horizontal line is shown. On the extreme left, there is a label that says Common Ancestor. Along the slanting, horizontal line there are five dots labeled from left to right as 1, 2, 3, 4, and 5. There is one vertical line between each of the consecutive five dots. The lines are labeled from left to right as Perch, Frog, Pigeon, Rats, and Human. A text box below the branching tree diagram is labeled Derived Shared Characteristics. In the box it says from left to right, Terrestrial during all stages, Jaws, Walking on two legs, Mammary glands and hair, and Four limbs.
Look at the possible derived shared characteristics, shown in the text box. Think about where these should be placed along the branching tree diagram. Where in the branching tree would you most likely write jaws? Explain your answer.
The given branching tree shows the classification of vertebrates on the basis of different characteristics into five major classes.
What is a branching tree diagram?A branching tree diagram is a set of groups within groups, with the organisms at the bottom having the fewest shared characteristics and the ones at the top having the most.
The first characteristic in the branching tree is the presence of jaws. Jaws are preset in most of the vertebrates except some classes of fishes.
The second characteristic in the branching tree is the presence of four limbs in the organism. All the organisms of reptiles, amphibians, birds, and mammals have four limbs.
The third characteristic in the branching tree is the terrestrial during all stages. The birds, rats, and mammals live in the terrestrial ecosystem.
The fourth characteristic in the branching tree is the presence of mammary glands and hair. The higher animals including mammals and humans have mammary glands and hair on the body.
The fifth characteristic in the branching tree is walking on two legs. Humans are the organisms which walk on two legs.
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what describes a mendelian trait
Arrange the carbohydrates (polysaccharide, monosaccharide, and disaccharide) in order of increasing size, from smallest to largest, with smallest at the the top
Much bigger than monosaccharides and disaccharides, polysaccharides are made up of hundreds of monosaccharides that are joined together to create polymers.
Which list accurately depicts the sizes of carbs from to largest?The right list of carbohydrates includes monosaccharide, disaccharide, polysaccharide, disaccharide, monosaccharide, polysaccharide, and monosaccharide, disaccharide, polysaccharide. This list displays the correct arrangement of the carbs from small to greater size.
Which three disaccharides are there?Disaccharides, which are commonly thought as the following three main substances: sucrose, lactose, and maltose, are a significant source of energy in the diet. The most accessible disaccharide and most generally used naturally produced sweetener is sucrose, which is also known as table sugar.
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if you find that two groups differ from each other on the dependent measure at the end of an experiment, you are able to conclude that: a. only one thing could have caused the difference: manipulation of the dependent variable.
b. the groups differed on the dependent measure before the study started.
c. only one thing could have caused the difference: manipulation of the independent
variable.
d. none of the above
If you find that two groups differ from each other on the dependent measure at the end of an experiment, you are able to conclude that only one thing could have caused the difference: manipulation of the independent variable that is option C.
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. The fundamental unit of inheritance passed down from parent to kid. Genes are made up of DNA sequences that are ordered one after the other in the nucleus of cells at specified positions on chromosomes.
Here,
When conducting experiments, the independent variable is manipulated to observe its effect on the dependent variable. If two groups differ from each other on the dependent measure at the end of an experiment, it can be concluded that the manipulation of the independent variable is the only thing that could have caused the difference, as long as other extraneous variables have been controlled for or ruled out.
It is important to keep in mind that correlation does not equal causation, so even though the difference in the dependent measure may be related to the manipulation of the independent variable, it is not possible to definitively conclude that the manipulation of the independent variable was the cause without further investigation.
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Humans and most primates have a Type I survivorship curve. In a Type I curve, organisms tend not to die when they are young or middle-aged but, instead, die when they become elderly (senescence). Species with Type I curves usually have small numbers of offspring and provide lots of parental care to make sure those offspring survive.
Humans and most primates have a Type I survivorship curve. In a Type I curve, organisms tend not to die when they are young or middle-aged but, instead, die when they become elderly (senescence). Species with Type I curves usually have small numbers of offspring and provide lots of parental care to make sure those offspring survive. True. Curve I is typical of humans and mammals living their lives.
Population is a group of living things of the same kind that live in a certain area. The population has several characteristics such as density, age group, number of sexes, size, dispersion, and dynamics. The survival of a population can be seen through the life table which contains the survival curve.
A survival curve is a graph showing the number of individuals living at each age for a species or group. Each typical curve has a typical living creature respectively. Curve I is typical of humans and mammals, curve II is typical of birds, reptiles and amphibians, and curve III is typical of invertebrates and fish. The type I curve is characterized by high survival in the early and middle age ranges because it shows a typical human. Humans have a good mindset and education so that they are able to take good care of their offspring so that they have a long lifespan and will only experience a decline when they are old.
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the study of human biology within the framework of human evolution can be said to be the domain of which of the following?a. primatologyb.physical/biological anthropologyc. archeologyd. osteology
The study of human biology within the framework of human evolution can be said to be the domain of physical/biological anthropology (B)
Physical and biological anthropology is the study of the evolution of the human species both in the past and in the present, with a primary focus on determining the factors that led to the wide range of human variation that exists today. Biological anthropology, which is also known as physical anthropology, is one of the classic subfields that fall under the umbrella of the discipline of anthropology. Along with cultural anthropology, archaeology, and linguistic anthropology, it is a component of the multidimensional core of what anthropology is in the United States.
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Alternation of generations occurs in protists and plants. Which of the following represents the correct sequence of events for this mode of reproduction? a. gamete --> fusion --> gametophyte --> spore --> sporophyte --> gamete b. gametophyte --> gamete --> fusion --> sporophyte --> spore --> gametophyte c. gametophyte --> fusion --> sporophyte --> spore --> gamete --> gametophyte d. sporophyte --> spore --> fusion --> gamete --> sporophyte
The proper order of events for this kind of reproduction is Gametophyte → gamete → fusion → sporophyte → spore → gametophyte.
What is the order of generational alternation?The following stages are involved in the alternation of generations: The sporangium is a part of the diploid sporophyte. Meiosis occurs in the sporangium, which produces haploid spores. A haploid gametophyte that develops from the spore is called a gametophyte.
Do certain protists have generations that alternate?For example, foraminifera, various marine algae, and slime molds all go through an alternation of generations. Slime molds have a life cycle that is extremely reminiscent of fungi. Swarm cells or myxamoebae are produced when haploid spores germinate.
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A messenger RNA from a human gene that is 4 kb in length is used as a probe in a Southern blot to identify restriction fragments of chromosomal DNA to which the mRNA can hybridize. Restriction fragments of DNA of 4 kb and 5 kb are observed to hybridize with the mRNA probe. What could explain how a 4 kb probe can hybridize with fragments that together sum to 9 kb? Select all that apply.
The restriction fragments may extend beyond the 5' or 3' ends of the transcription stop site.
A restriction fragment may extend beyond the 5' end of the transcription start site.
The result must be some sort of mistake.
The gene from which the mRNA probe is transcribed may contain introns.
The gene from which the mRNA probe is transcribed has only one exon.
The correct option that explains the hybridization of 4kb probe fragment beyond 5' and 3' ends of the transcription is that a restriction fragment may extend beyond the 5' end of the transcription start site.
In a Southern blot, a 4 kb messenger RNA from a human gene is utilised as a probe to locate restriction regions of chromosomal DNA to which the mRNA may hybridise. DNA restriction segments of 4 and 5 kb have been reported to hybridise with the mRNA probe. Option 1 explains how a 4 kb probe can hybridise with fragments totaling 9 kb, stating that the restriction fragments may extend beyond the 5' or 3' ends of the transcription stop site. The +1 site, or transcription site, is the location on the DNA from which the first RNA nucleotide is transcribed.
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When a system reaches equilibrium, the ______ of the forward and reverse reactions are equal and the ratio of the forward over the reverse ______ equals the equilibrium constant, K.
When a system reaches equilibrium, its forward and reverse reaction concentrations are equal, and its forward temperature over its reverse temperature ratio is equal to the equilibrium constant, K.
When a system approaches equilibrium, what happens to the forward and reverse reactions?The forward and reverse reactions are moving at the same speed when the system is in equilibrium. The amount of each reactant and product remains constant until equilibrium has been reached.
What causes the left shift in equilibrium?When a reactant's concentration is reduced, the equilibrium moves to the left, yielding fewer products. When a product's concentration falls, the equilibrium moves to the right, producing additional products as a result.
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Which of the following statements correctly match(es) the layer of the skin to the tissue composing it?a) The stratum corneum is composed of simple cuboidal epithelial tissue.b) The dermis is composed of dense regular connective tissue over dense irregular connective tissue.c) The dermis is composed of loose/areolar connective tissue over dense regular connective tissue.d) The epidermis is composed of stratified squamous epithelial tissue.e) The hypodermis is composed of adipose connective tissue.
The following statements correctly match(es) the layer of the skin to the tissue composing it are d) The epidermis is composed of stratified squamous epithelial tissue. and e) The hypodermis is composed of adipose connective tissue.
The skin is the outermost organ of humans which consists of three layers, namely the epidermis, dermis, and hypodermis. The skin functions to protect the body from foreign particles that do not enter the body.
The epidermis is the outermost tissue composed only of stratified squamous epithelium, has no blood vessels so that oxygen is obtained from through the second main constituent of the skin, namely the dermis. While the dermis is the middle layer that lies between the epidermis and hypodermis. The hypodermis is the deepest layer of human skin which consists of adipose connective tissue, blood vessels, hair follicles, and lymph vessels. This layer functions to protect the body from hot/cold temperatures and stores energy reserves.
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Kora lost his pinky in a boating accident. A few years after the accident, he had a brain scan and it demonstrated that areas of his brain that previously responded when he moved his pinky now respond when he moves his index finger. This change demonstrates the _____ of the brain.
Kora lost his pinky in a boating accident. A few years after the accident, he had a brain scan and it demonstrated that areas of his brain that previously responded when he moved his pinky now respond when he moves his index finger. This change demonstrates the plasticity of the brain.
Neuroplasticity which is also known as brain's plasticity is basically the brain's ability to be able to change as well as adapt in response to an experience. It is an umbrella term which describes the brain's ability to change, to reorganize, or to be able to grow neural networks. Plasticity can involve functional changes which occur due to brain damage or even structural changes which occur due to learning.
Neuro basically refers to the neurons which are the the nerve cells and are the building blocks of the brain as well as the nervous system. Therefore, neuroplasticity allows these nerve cells to change or adjust.
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I really need help with my homework for Behavioral Neuroscience The questions are 1. Why might we want to block Na channels? (think about lidocaine) and 2. What would happen if I gave you a channel blocker that disrupted an ionotrophic receptor?(this is more simplistic than you think!)
1. The reason for blocking the Na channels is because blocking sodium channels reduces the velocity of action potential transmission within the heart (reduced conduction velocity). This may be an important mechanism for suppressing tachycardias that are caused by abnormal conduction .
2. Protein interactions with ion channel receptors can increase if channel blocker is administered that disrupted ionotrophic receptor.
What is Channel blockerA channel blocker is the biological mechanism in which a particular molecule is used to prevent the opening of ion channels in order to produce a physiological response in a cell.
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Na channels might need to be blocked when we need to stop Na ions from entering the cell to generate an inward current.
If you were given a channel blocker that disrupted an ionotrophic receptor, it would prevent the normal activation of that receptor and alter the physiological processes that it regulates.
What does channel blockers do?Blocking Na channels with drugs such as lidocaine can prevent the initiation and propagation of nerve impulses, and thus act as a local anesthetic. By blocking Na channels in specific regions of the body, lidocaine can produce localized numbness and relieve pain.
If given a channel blocker that inhibited the normal activation of an ionotrophic receptor, it would alter the physiological processes that it regulates. Depending on the specific receptor and the physiological process being disrupted, the consequences could range from muscle weakness or paralysis to changes in neurotransmitter release and synaptic transmission.
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True or False? The following is an example of scarcity. Each lake has a limited number of fish living in it. As the number of fishermen who fish at the lake increases beyond a certain point, we see the fish population start to decline.
The statement " As the number of fishermen who fish at the lake increases beyond a certain point, we see the fish population start to decline" is true because A finite number of fish can be found in each lake.
There are only a certain number of fish that can be found in each lake. If the number of fishermen that fish at the lake continues to climb above a certain point, the lake's fish population will begin to see drop.
Because there are a limited number of fish in each lake, the statement that "As the number of fishermen who fish at the lake increases beyond a certain point, we see the fish population start to decline" is accurate. This is due to the fact that the number of fishermen who fish at the lake can only reach a certain point.
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the waist-circumference-to-height formula suggests that a male who is six feet tall (72 inches) should have a waist circumference of no more than 32 inches.
The given statement "The waist-circumference-to-height formula suggests that a male who is six feet tall (72 inches) should have a waist circumference of no more than 32 inches." is false the ratio is basically the circumference of the waist divided by height.
A person's waist-to-height ratio which is also represented as WHtR or also known as the waist-to-stature ratio or WSR, is basically defined as their waist circumference which is divided by their height. Both of these are measured using the same units.
This ratio can be used in order to predict obesity-related cardiovascular disease. The WHtR is can be basically defined as measure of how the body fat is distributed. The higher is the values of WHtR, the higher will be the risk of obesity or any other related cardiovascular diseases.
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A mother whose blood type is A, MN, Rh- has a child who tests AB, MN, Rh- . In a paternity test using these results, the following 5 fathers were genotyped. Which ones could be the father (check any and all that are possible)?Select one or more:a. I^A i, MN, rrb. none could be the fatherc. ii, NN, rrd. I^A I^A, MN, RRe. ii, MM, rrf. I^Bi, MN, RR
The only possible father is d. I^A I^A, MN, RR, as he is the only one with a blood type that is compatible with the mother's blood type and the child's blood type.
Blood type is determined by the combination of antigens (proteins or carbohydrates) found on the surface of red blood cells. The most important blood type antigens are the ABO antigens and the Rh factor. The ABO antigens determine if someone has blood type A, B, AB, or O, while the Rh factor determines if someone is Rh-negative or Rh-positive.
A person's blood type is determined by their genetic code, specifically the combination of alleles (versions of a gene) they inherit from their parents. For example, the gene that determines ABO blood type has three alleles: I^A, I^B, and i. I^A codes for the A antigen, I^B codes for the B antigen, and i codes for no antigens. When a person inherits one I^A allele and one I^B allele, they have AB blood type.
The child's blood type AB, MN, Rh- can only be produced if one parent has type A (I^A I^A or I^A i) and the other parent has type B (I^B I^B or I^B i). The mother's blood type is A, MN, Rh-, which is the I^A I^A type. The father's blood type must therefore be B, MN, Rh- or AB, MN, Rh- (I^B I^B or I^B i, or I^A I^B).
Out of the five possible fathers, the only one with blood type B, MN, Rh- or AB, MN, Rh- is d. I^A I^A, MN, RR. This father could be the biological father, as he has type A blood, which combined with the mother's type A blood could produce a child with AB blood.
In conclusion, the only possible father is d. I^A I^A, MN, RR, as he is the only one with a blood type that is compatible with the mother's blood type and the child's blood type.
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What are the treatment options for this disorder?
Which of the following represents the digestion center of the cell responsible for breakdown macromolecules and worn-out organelles? -Golgi complex
-lysosome
-rough ER
-mitochondrion
-nucleus
Lysosomes are the digestion centers of the cell, responsible for the breakdown of macromolecules and worn-out organelles.
What is cell?The smallest unit in biology that may exist on its own and is made up of all living animals and body tissues. The cell membrane, nucleus, and cytoplasm are the three primary components of a cell. The cell membrane encircles the cell and controls the chemicals that enter and exit it. A cell is defined as "the smallest, most essential part of life, in charge of all of life's processes." Cells are structural, functional, and biological units found in all living organisms. A cell has the ability to replicate itself. As a result, they are known as life's building blocks.
Here,
The Golgi complex is involved in the modification, sorting, and packaging of proteins and lipids into vesicles for transport to their final destination within the cell or outside the cell. The rough endoplasmic reticulum (ER) is involved in protein synthesis and processing. Mitochondria are the "powerhouses" of the cell, responsible for producing energy in the form of ATP. The nucleus is the control center of the cell, containing the genetic material in the form of DNA.
Lysosomes are the digestion centers of the cell, responsible for the breakdown of macromolecules and worn-out organelles. They contain a variety of hydrolytic enzymes, which can break down proteins, carbohydrates, and lipids into smaller molecules that can be used by the cell.
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concluded that because youths came from parents who were delinquent in very much the same way that the boys were delinquent, the factors that produce delinquency where inherited.1) Sheldon2) The Gluecks3) Darwin4) Sampson and Laub
1) Sheldon concluded that because youths came from parents who were delinquent in very much the same way that the boys were delinquent, the factors that produce delinquency were inherited.
Sheldon and Eleanor Glueck, two pioneers in the field of criminology, followed the beginning and end of the criminal lives of individuals. The initiation of delinquency, the progression of offences, the continuation of delinquency, and the transition away from delinquency are some of the topics that are discussed in life course theories.
Sheldon came to the conclusion that the elements that promote delinquency are hereditary since the boys who committed crimes had parents who had committed crimes in a manner that was extremely comparable to the boys' own criminal behaviour.
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The plasma membrane is semipermeable because____.
A. Phospholipids let through both polar and nonpolar substances.
B. Proteins in the membrane act like gates to control the entrance and exit of molecules.
C.cholesterol makes the membrane too rigid to let small molecules through.
D. Moving materials through the membrane always requires the use of ATP
'The plasma membrane is semipermeable because B. Proteins in the membrane act like gates to control the entrance and exit of molecules.
What does the plasma membrane as a selectively semi-permeable barrier mean?The expression the plasma membrane as a selectively semi-permeable barrier indicates that this barrier allows the entry and exit of certain molecules which is due to the presence of proteins that make this work.
Therefore, with this data, we can see that the plasma membrane is a selectively semi-permeable barrier that can allow the in and put of specific molecules in the cell.
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Which plate has the most countable colonies? Use the CFU calculator to determine the cfu/mL.
Use the CFU Calculator to calculate the cfulmL for it. AI Recommended Answer: Plate with the most colonies is the Petri dish with 1000 colonies.
Please help me out for the steps of the scientific method
Explanation:
I would say :
collect and interpret data,
formulate a hypothesis,
design and execute an experiment,
Make observations,
and form conclusion.
economic importance of earthworm
Economic importance of earthworm :
Earthworms improves the soil and promote plant growth.