Measure out and carefully pour a quarter cup of oil into the Oil+Water container. Watch the water and oil in the bottle while letting it rest on a tabletop or other flat surface.
How long do orchids survive?Orchids can survive up to 20 years in the wild, depending on their species and the environment. While potted orchids don't have quite the same longevity, with proper care, they may survive for 10 to 15 years. According to some reports, orchids have far longer life spans.
What does the orchid represent?The orchid represents love, beauty, refinement, having many offspring, thoughtfulness, and mature appeal in floral symbolism. There is now a sizable market for orchids all around the world.
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If an allogenic blood component is shipped from the donor center with infectious disease testing incomplete, the units must be labeled with:
When an allogenic blood component is shipped from a donor center with incomplete infectious disease testing, it must be labeled appropriately to ensure the safety of the patient.
The label must include a message stating “For Emergency Use Only By (Specific Patient)”, as well as any tests that have been completed, and those tests that are negative.
There is no specific color requirement for the label, so it is important to ensure that the message is clearly visible. It is also important to note that the unit must not be released for transfusion until appropriate infectious disease testing is completed and verified. This is to ensure that the patient is not exposed to any additional risk.
Proper labeling is essential in helping to identify any potential risks associated with the unit, so that the patient receives the safest blood possible.
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HELP PLEASE
A population of coyotes lives in a small valley. The coyotes prey mainly on rabbits. The rabbits eat meadow plants that grow in the valley
Each year there are about the same number of coyotes, rabbits, and plants in the valley. One year a drought kills about half of the meadow
plants.
What effect will the drought have on the coyote population in the valley?
O A It will decrease because the rabbits will decrease.
B. It will stay the same because only the plants are affected.
O c. It will increase because there will be more space for us
D. It will decrease because there will be fewer plants for them.
The coyote population in the valley will decrease because the rabbits will decrease.
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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Which of the following is not a factor in the regulation of cell division in normal cells?
a. Growth factors enter the cell nucleus
b. Signals are transduced from cell surface to cell nucleus
c. Transcription factors are recruited
d. Growth-inhibiting factors promote the synthesis of proteins that inhibit cell division
Growth factors entering the cell nucleus are not a factor in the cell division regulation in normal cells. Therefore, option a is correct.
The word "growth factor" refers to a group of gene products that are crucial in controlling cell division and tissue proliferation. There is a unique cell receptor for each growth factor.
Growth factors can act on particular cell surface receptors, which then relay their signals to various intracellular components and ultimately lead to altered gene expression. When a growth factor binds to a receptor, cell division can begin or be blocked in particular circumstances.
They attach to the receptor and function as signaling molecules. To have the desired effect, the activated receptor in turn activates an intracellular protein. They don't enter the cell nucleus instead act on the cell surface receptors.
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What are the 4 most important environmental factors that influence bacterial growth?
The 4 most important environmental factors that influence bacterial growth are oxygen, temperature, water and pH.
Bacteria are unicellular, prokaryotic microorganisms that are able to survive in a lot of different conditions. They have different shapes, different modes of nutrition and lack a nucleus and membrane bound cell organelles.
The four most important environmental factors that influence the growth of bacteria are oxygen, temperature, water and pH. Different types of bacteria types need different temperatures in order to grow. Some can survive in cold temperatures while some can even survive in very high temperatures.
Most of the bacteria survive in neutral or less acidic environments but also a lot of bacteria are able to survive in a very wide spectrum of pH. Some bacteria do not require oxygen and are hence called anaerobic while some type of bacteria need oxygen to grow and are called aerobic. Water is also required by bacteria and it boosts their growth.
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What is the purpose of the world on the turtle's back?
The purpose of the world on the turtle's back is because they think that there must be both good and evil in order to keep the world in a state of equilibrium.
According to tradition, the creator goddess severed the cosmic turtle's legs and used them to raise the sky after another god had harmed them. Even if it doesn't exactly put a terrapin at the center of the cosmos, it nonetheless places one there to keep the sky from collapsing.
The nice and the evil are not always what they seem to be, and vice versa, since there is always something within each and every person that can pull them in any direction. as shown in "A World on a Turtle's Back," a short fiction.
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What happens in insertion mutation?
An insertion mutation changes the DNA sequence by adding one or more nucleotides to the gene.
An insertion is a point mutation in which one or more base pairs is added to a DNA sequence. Point mutations is further divided into silent mutations, missense mutations, and frameshift mutations.
Frameshift mutation is considered as a genetic mutation caused by a deletion or insertion in a DNA sequence. This kind of mutation shifts the way the sequence is read. diseases like cystic fibrosis is a result of frameshift mutation that alters the CFTR gene. The harshness of frameshift mutation is reliant on the number of nucleotides and the position of insertion of nucleotides.
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How did black Monday affect the direction of Wilkins career
Answer:
Bombing of Hiroshima
Explanation:
This made him want to study the science of life
Find the mass of the cone using the triple beam balance. A. 543. 0 g b. 542. 0 g c. 504. 28 g d. 502. 8 g Please select the best answer from the choices provided A B C D
The cone's mass as determined by the triple beam balance .(A) 543.0g is correct option.
The distant beam typically reads in 10 gramme increments, the front beam can read from 0 to 10 grammes, and the center beam typically reads in 100 gramme increments. The triple beam balance can be used to measure substances and measure mass directly from objects as well as find mass by difference for liquids.
Mass is measured carefully and accurately using an equipment or tool known as a triple beam balance. These instruments typically have a reading error or roundoff of 0.05 grammes.
The name of the instrument alludes to its three beams, of which the front beam is the smallest and lightest and the middle beam is the largest and longest. The far beam is of average size.
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Guiding Question:
Would this DNA strand function in a living organism? Explain with a CER format.
Legends:
S-Deoxyribose
A, G, C, T-Nitrogen bases
P-Phosphate group
This DNA strand won't function in a living organism because of the incorrect matching of the base pairs which will distort the structure of the molecule.
What is DNA?This is referred to as deoxyribonucleic acid and it is the genetic material of most living organisms.
Claim - A-G , C-T were paired in the example given.
Evidence - Under normal circumstances, the nitrogen-containing bases adenine (A) and thymine (T) pair together, and cytosine (C) and guanine (G) pair together.
Reasoning - Since the base pairs aren't correctly matched then there will be a distort the structure of the molecule which could cause genetic diseases.
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Drag the labels to their appropriate locations to identify the type of point mutation shown. a) silent mutation b) nonsense mutation c) missense mutation
The type of point mutation shown: a) silent mutation
b) nonsense mutation
c) missense mutation
d) Frameshift mutation
Any change in the DNA sequence of a cell. Mutations can be caused by mistakes in cell division or by being exposed to DNA-damaging agents in the environment. Mutations can be harmful, beneficial, or inactive.
Hereditary mutations cause cystic fibrosis, hemophilia, and sickle cell disease. Other mutations can happen on their own during a person's life. These are known as sporadic, spontaneous, or new mutations. They only affect a small number of cells.
Genetic mutations are changes to your DNA sequence that occur during cell division, or when your cells multiply. Your body's DNA coding directs it on how to create and operate. Hereditary mutations can cause genetic disorders like cancer, or they might help people adapt to their surroundings over time.
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What makes the information that you gathered truthful and accurate?
The information that I gathered is truthful and accurate because it was gathered from reliable sources, such as peer-reviewed journal articles, official government websites, and authoritative books.
Furthermore, I verified the accuracy of the information by cross-referencing it with other sources.
The Importance of Checking the Accuracy of InformationWith the prevalence of the internet, it is easier than ever to find information, but it is also easier than ever to find false or misleading information. As such, it is important to have the skills to be able to assess the accuracy of any information that you come across.
One of the key skills to have when assessing the accuracy of information is to be able to recognize reliable sources. For example, peer-reviewed journal articles are generally more reliable than websites, and official government websites are generally more reliable than personal blogs. It is important to be aware of the source of any information that you come across, and to give more weight to information from reliable sources.
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What describes natural rights?
Natural rights are those that are independent of the laws or customs of any particular culture or government, and so are universal, fundamental and inalienable
These rights were bestowed by God and cannot ever be taken away or even ceded. These fundamental natural rights are "life, liberty, and property,"
Human laws cannot nullify them, but an individual can lose the ability to enjoy them by acting in a certain way, like by wrongfully abusing the rights of others.
Natural rights are not generally embraced, in part because of their apparent incoherence and religious connotations.
Some philosophers contend that only legal rights exist and that there are no natural rights; for example, Jeremy Bentham referred to natural rights as "simple nonsense."
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Double-stranded viral DNA is incorporated into a host cell as a _____.
Double-stranded viral DNA is incorporated into a host cell as a form of genetic material.
The viral DNA is packaged within the viral capsid and is released into the cells of the host organism when the virus enters the cell. Once inside the cell, the viral DNA is uncoated and then incorporated into the host cell's own genetic material. This process, known as “genetic transformation”, is how the virus replicates its genetic material and spreads to other cells.
The incorporation of viral DNA into a host cell is an essential part of how viruses spread and cause disease. The viral DNA is able to take control of the host cell's normal cellular functions and cause it to produce more viral particles.
This process, termed “lytic cycle”, is necessary for the virus to spread and cause infection. In some cases, the viral DNA also integrates into the host cell's genome, allowing the viral genetic material to be passed down through generations of cells. This process, referred to as “lysogenic cycle”, can lead to persistent infections and chronic diseases.
In order to successfully incorporate its DNA into the host cell, the virus must first attach to the host cell's membrane. This is done by the virus making use of specific proteins known as “receptors” that are found on the cell's surface. When the virus attaches to the receptor, it is allowed to enter the cell. Once inside the cell, the viral DNA is then uncoated and incorporated into the host cell's own genetic material.
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What is the process by which plants use energy from sunlight to convert water and carbon dioxide into glucose and oxygen?
Answer:
The process by which plants use energy from sunlight to convert water and carbon dioxide into glucose and oxygen is called photosynthesis. This process takes place in the chloroplasts of plant cells, which contain a green pigment called chlorophyll.
During photosynthesis, the chlorophyll absorbs light energy from the sun, which is used to split water molecules into oxygen and hydrogen ions. The oxygen is released into the atmosphere, while the hydrogen ions are used to produce ATP, a molecule that stores energy.
Next, the plant takes in carbon dioxide from the air and combines it with the hydrogen ions to produce glucose, a simple sugar that the plant uses as food. This process is known as the Calvin cycle.
Overall, photosynthesis is a vital process that allows plants to produce their own food and oxygen, and it is essential for supporting life on Earth.
What methods do cells use to increase the surface area to volume ratio?
Prokaryotic cells have inner folds of the cell membrane that are responsible for specific functions such as respiration. These creases increase the surface area.
As the cell radius increases, the surface area increases as the radius squared, but the volume increases as the radius cubed (much faster).
As the cell advance, its internal volume increases and the cell membrane expands. Unfortunately, volume increases faster than surface area, so the relative amount of surface area available to direct material to a unit volume of cells steadily decreases. The important point is that the surface area-to-volume ratio decreases as the cells get larger.
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Which of the following functions occurs in the part of the digestive system indicated by the arrow? dehydration and compaction of indigestible materials add breakdown of swallowed foods O secretion of bile and storage of nutrients O secretion of buffers and digestive enzymes
The correct option (a) Dehydration and compaction of indigestible materials add breakdown of swallowed foods.
The gastrointestinal tract, as well as the digestive organs, comprise the human digestive system (the tongue, salivary glands, pancreas, liver, and gallbladder). Digestion is the process of breaking down food into smaller and smaller components so that it may be absorbed and digested by the body. The digesting process is divided into three stages: cephalic, stomach, and intestine.
The initial step of digestion, known as the cephalic phase, begins with secretions from stomach glands in reaction to the sight and smell of food. This stage comprises the mechanical breakdown of food by chewing as well as the chemical breakdown by digestive enzymes in the mouth.
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Full Question: Which of the following functions occurs in the part of the digestive system indicated by the arrow?
dehydration and compaction of indigestible materials
Acid breakdown of swallowed foods
secretion of bile and storage of nutrients
secretion of buffers and digestive enzymes
Why are the processes of crossing over and independent assortment important events during meiosis?
Each gamete has a unique DNA set because of recombination and independent assortment during meiosis. The resultant zygote has a special set of genes as a result.
A diploid cell, or homolog, the first stage of meiosis, has two copies of each chromosome. Each homolog now consists of two identical sister chromatids as a result of the cell's first DNA replication process.
Then, through homologous recombination, each set of homologs pairs with one another and exchanges genetic material, frequently resulting in physical connections (crossovers) between the homologs. The spindle machinery segregates the homologs into distinct daughter cells during the first meiotic division. The cells then move directly to a second division without a round of DNA replication in between.
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by far the most abundant and widespread organisms on earth are the _____.
The most abundant and widespread organisms on earth are the Prokaryotes.
Prokaryotes are the single celled organisms and have distinct features than other multicellular living organisms on earth. They are an essential class of organism as they perform several functions like nutrient recycling etc to maintain a well balanced ecosystem.
They are also by far the most diverse group of organisms in both metabolic and natural adaptive manner. Prokaryotes are abundantly found on earth because of their innate ability to adapt themselves even in extreme harsh conditions which results in their easy survival over ages.
Prokaryotes consist of organisms like Bacteria, Cyanobacteria, Archaeans etc.
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How can there be 46 chromosomes in a human cell at metaphase and also 46 chromosomes in each daughter cell?
The daughter cells share the same genetic makeup as the parent cells. Somatic cells divide and then separate all 46 chromosomes through the process of mitosis. The end product is two daughter cells with 46 chromosomes.
A chromosome is a lengthy DNA molecule that contains all or a portion of an organism's genetic code. The very long, thin DNA fibers in most chromosomes are covered with packing proteins; in eukaryotic cells, the histones are the most significant of these proteins. In order to preserve the integrity of the DNA molecule, these proteins condense and adhere to it with the help of chaperone proteins. These chromosomes exhibit a complicated three-dimensional structure that is crucial for controlling transcription.
A phase of cell division known as "metaphase" (mitosis or meiosis). Individual chromosomes are typically dispersed throughout the cell nucleus.
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How does the Devil and Tom Walker reflect Puritans
"The Devil and Tom Walker" reflects the Puritan belief in the concept of predestination, which holds that God has already predetermined the fate of every individual and that salvation can only be attained by the elect, who have been chosen by God.
Tom's encounter with the devil can be seen as a reflection of the Puritan belief in the eternal struggle between good and evil, and the constant temptation of sin.
What does "The Devil and Tom Walker" show?"The Devil and Tom Walker" is a short story by Washington Irving that was published in 1824. The story also reflects the Puritan belief in the importance of hard work and the dangers of material wealth.
The story portrays Tom Walker as a greedy and miserly man who is only interested in accumulating wealth and power, and is ultimately punished by the devil for his greed and avarice. This reflects the Puritan belief that material wealth is a temptation that can lead one away from the path of salvation.
Therefore, "The Devil and Tom Walker" reflects many of the Puritan beliefs and values that were prevalent in New England during the late 1700s, including the concepts of predestination, the eternal struggle between good and evil, the dangers of material wealth, the importance of repentance and redemption.
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Chloroplasts are a specialized structure that
convert sunlight into energy. Which cell type
requires these?
Plant or Animal
Answer:
Plant cells
Explanation:
The purpose of the chloroplast is to make sugars that feed the cell's machinery.
Answer:
Plant Cells require Chloroplasts.
Explanation:
A chloroplast is an organelle ( an organ within a cell) of a plant cell, who's main purpose is to convert energy from the Sun into chemical potential energy, otherwise known as photosynthesis.
write a plan to investigate the effect of temperature on the rate of digestion of starch by the enzyme amylase
your plan should include:
•a hypothesis
•selection, and justification of equipment, techniques or standard procedures
•health and safety associated with the investigation
•a step-by-step method for data collection and analysis to test the hypothesis including:
-quantities to be measured
-number and range of measurements to be taken
- how equipment may be used
-control variables
-brief method for data collection analysis
(12 marks)
Here is a possible plan for investigating the effect of temperature on the rate of digestion of starch by the enzyme amylase:
Hypothesis: Increasing the temperature will increase the rate of digestion of starch by the enzyme amylase.
Equipment and techniques:
1. Microscope and microscope slides
2. Hot plate or incubator to control temperature
3. Stopwatch or timer
4. Starch solution
5. Amylase enzyme solution
6. Water bath to maintain temperature
Justification: The microscope and microscope slides will be used to observe the digestion of starch by amylase. The hot plate or incubator will be used to control the temperature of the reaction. The stopwatch or timer will be used to measure the time required for the starch to be digested. The starch solution and amylase enzyme solution will be used to carry out the reaction. The water bath will be used to maintain the temperature of the reaction.
Health and safety:
1. Wear protective goggles to protect the eyes from splashes
2. Handle the solutions and enzymes carefully to avoid spills or splashes
3. Follow proper laboratory safety guidelines, such as not eating or drinking in the lab
Step-by-step method for data collection and analysis:
1. Set up the microscope and prepare the microscope slides.
2. Prepare several starch solutions with different temperatures, using the hot plate or incubator to control the temperature.
3. Add a drop of amylase enzyme solution to each starch solution.
4. Place the slides under the microscope and start the timer.
5. Observe the digestion of the starch at regular intervals, using the stopwatch or timer to measure the time required for the starch to be digested.
5. Record the time required for the starch to be digested at each temperature.
6. Repeat the experiment several times to obtain a reliable average.
7. Plot the data on a graph, with temperature on the x-axis and time required for starch digestion on the y-axis.
8. Analyze the data to determine the effect of temperature on the rate of starch digestion.
Control variables:
1. The concentration of the starch solution should be kept constant.
2. The concentration of the amylase enzyme solution should be kept constant.
3. The pH of the solutions should be kept constant.
4. The volume of the solutions should be kept constant.
Brief method for data collection and analysis:
1. Collect data by observing the digestion of starch at different temperatures and recording the time required for the starch to be digested.
2. Plot the data on a graph and analyze the trend to determine the effect of temperature on the rate of starch digestion.
3. Compare the results with the hypothesis to determine whether the hypothesis is supported or not.
Capillary action, which allows plant sap to flow through a tree, is the result of cohesion between water molecules. True False
Capillary action happens in light of the fact that water is tacky, on account of the powers of attachment (water particles like to remain nearby) and bond (water atoms are drawn in and stick to different substances).
The development of water particles in the plant body is because of the cement powers between the water atoms and surfaces of the root and stems. The durable powers present between the water particles keep them intact and back off their transportation.
Since water particles like to remain together (attachment) and like to adhere to the walls of the containers of cellulose (bond), they ascend the cylinders as far as possible from the roots to the leaves. Water then, at that point, dissipates from the leaves, assisting with drawing up additional water from the roots. This interaction is called hairlike activity.
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Please help i need the answers asap
The independent variable is temperature
The dependent variable is height of the plants
Three constant variables are; sunlight, nutrients and humidity
A line graph is more suitable since we have two variables.
What is the variable?We know that the term variable has to do with the kind of value that changes from time to time. In an experiment, there are three main kinds of variables;
1) the independent variable - The value of this would be altered throughout the experiment
2) The dependent variable - The value of this would only be changed when we change the dependent variable
3) The controlled variable - This would remain the same throughout the experiment
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Which of the following is an important step in the preparation of a proper bacterial smear?
a. Allow the loop to cool after it has been flamed.
b. Label the underside of the slide (the downward-facing side of the slide) with the type of microbe you will be transferring.
c. Repeat inoculations such that the smear is as thick and undiluted as possible.
d. Apply methane to clean the slide prior to smearing inoculum.
Allow the loop to cool after it has been flamed is an important step in the preparation of a proper bacterial smear
A bacterial smear is a small layer of bacteria that is deposited on a slide or a tray for staining. The bacteria are fixed on the slide, and this stops the bacterial sample from being washed away during staining. A crucial step in creating a healthy bacterial smear is allowing the loop to cool after burning.
This is due to the fact that blazing the loop sterilises it by eliminating any bacteria that may be present on the loop, but if the loop is still hot when a sample is taken, the bacteria may be "fried" rather than collected. For effective identification and analysis, it is crucial that the bacteria are gathered in their natural state, which is ensured by allowing the loop to cool.
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Please Help Me Out❗️❗️
Answer:
B
Explanation:
Enzymes work to speed up chemical reactions by changing what goes into the reactions into different molecules. To do so, these enzymes bind with the substrates, making the physical form very important. The lock and key method explains that enzymes and their corresponding substrates are shaped very specifically to be able to fit into one another to undergo this change. Hope this helps
Vestigial traits and neutral changes in DNA sequences are good examples of _____. Vestigial traits and neutral changes in DNA sequences are good examples of _____. acclimation
Vestigial traits and neutral changes in DNA sequences are good examples of non-adaptive traits .
Structures that don't have any obvious feature and appear like residual components from a beyond ancestor are known as vestigial systems. Examples of vestigial systems encompass the human appendix, the pelvic bone of a snake, and the wings of flightless birds. Vestigiality is the retention, at some point of the manner of evolution, of genetically decided systems or attributes which have misplaced a few or all the ancestral feature in a given species. Assessment of the vestigiality should usually rely upon assessment with homologous functions in associated species.
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Both the volume and the surface area for three different cells were measured. These values are listed in the following table. Using data from the table above, select the best explanation for why that cell will be able to eliminate waste most efficiently? Cell 2, since it has the highest ratio of surface area to volume, which facilitates the exchange of materials between a cell and its environment Cell 1, since it has the smallest volume and wilt not produce as much waste as the other cells. Cell 3, since it has the largest surface area, which will enable it to eliminate all of its wastes efficiently. Cell 3, because it is big enough to allow wastes to easily diffuse through the plasma membrane.
The cell 3 will have the ability to remove the waste highly efficiently and easily.
The best explanation for why a cell will be able to eliminate waste most efficiently is Cell 3, as it has the largest surface area, which will enable it to eliminate all of its wastes efficiently. Larger cells have a smaller surface-area-to-volume ratio than smaller cells, meaning that they have to rely on their larger surface area to facilitate the exchange of materials between a cell and its environment. As such, having a larger surface area will enable a cell to eliminate all of its wastes efficiently.
Cell 1 and cell 2 owing to there small surface area will not be that efficient at removing waste. So, for exchange of waste more surface is required in addition to having a good concentration difference between inside and outside of the cell.
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if a cell contained three pairs of homologoues (n=3, 2n=6) how many configurations are possible?
Twice the number of chromosomes in a haploid cell (n).
How many chromosomal combinations are feasible in the gametes of a 2n 6 cell?The number of potential chromosomal pairings in gametes is 2n (two to the ‘n’ power, where ‘n’ is the number of chromosomes in the haploid set). So, for 2n = 4, n = 2, and gamete number = 22 = 4, the answer is 4. Furthermore, for 2n = 6, n = 3, and gamete number = 23, the answer is 8.
As a result, an organism with cells 2n=6 is diploid and contains 6 chromosomes in total. In other words, this creature contains three chromosomal pairs. We will use the formula nCr = n! / r! * (n – r)! to compute combinations, where n represents the total number of things and r indicates the number of items picked at a time.
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What are some examples of social issues
Answer:
In the USA especially the major social issues are
Wage inequality.
Healthcare.
Housing
Voting rights
Reproductive rights
Book banning in schools
LGBTQ+ rights.
Explanation: there are a lot more those are just what I believe are the most popular social issues currently