Biology

A food web shows how energy moves from one organism to another in an ecosystem. Students in a life science class created a diagram demonstrating a food web. Based on the food web, which of these organisms receives its energy directly from a primary consumer? Caterpillar Dandelion FrogGrasshopper
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NEED ANSWER ASAP (95 points)1.Give an example of one type of mutation, Give a Definition of it, and explain what is might do.2.Give an example of how the environment can effect an organsism's genetics?3.If a mutation happens in a somatic cell, will it be passed on to the next generation? Why or why not?4.Explain the difference between a GENE and an ALLELE5.What is the advantage of CROSSING OVER in Meiosis?6.If the FREQUENCY of a trait is INCREASING in a population of animals......what might that mean?7.Explain very briefly what causes Trisomy 218.Imagine a population of animals is separated by a natural event....and half of them a forced into a valley, and the other half are forced into the mountains. Imagine both populations survive. What type of changes might you notice a million years later between the 2 populations? Why is this?9.What are 3 things you know about Genetic Variation now that you didn't know before this Unit?
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what do we call the actual gas or substance that causes air pollution?
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the earth requires 24 hours for one rotation. so in 24 hours how many longtitudes will face the sun?
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PLWASS HURRY!!! Your teacher gives you a task in science class. You must decide which of the five samples you are given are alive or were once alive.One specimen is a crusty gray-green object. What is the BEST clue you could use to decide: living thing or not a living thing?A)Does it move?B)Does it have DNA?Is it made of cells?D)Can it make its own food?
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Precipitation in Jacksonville (1961-1990True or false
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The human hands and feet have similar types and numbers of bones. However, hands and feet are very different in their appearance. What physical differences do you notice between the hands and feet? How might these differences relate to differences in the function of these body parts? Would you expect other primates to have hands and feet differently like this? Why or why not?
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Pandas evolved longer wrists to better eat bamboo over a long period of time and this in turn increasetheir possibility of survival. This is an example of:a. Artificial Selectionb. Adaptationc. Biodiversityd. Homeostasis
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Ill mark as brainliest
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Siblings will have the same nuclear DNA, but different mtDNA. True False
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If HH crossed with Hh. What would be the probability of hh?
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What type of cells are produced at the end of meiosis?
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The nucleus contains genetic information which controls and gives the cell _________________ about what to do.
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Select the false statement about the effect of lymphopenia on the immune response following administration of immunosuppressive drugs like the corticosteroids. Select one: a. The immunosuppressive effect (lymphopenia) occurs 4 to 6 hours following drug administration and significantly reduces the number of circulating lymphocytes in the blood. b. Lymphopenia decreases the ability of lymphocytes to initiate and participate in an immune response. c. Corticosteroids increase the amount of lymphoid tissue and cells in the lymph nodes and spleen. d. None of these are false.
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if you are hiking and find fossils, can you dig them up
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HELP! what is the alignment of the earth,moon and sun during a solar eclipse?
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The ability to taste PTC comes from the presence of a dominant allele (T). A population of 20 individuals was surveyed to determine whether or not they could taste PTC. Sixteen out of the twenty surveyed could taste PTC. Four could not taste PTC. Assume that Hardy-Weinberg Equilibrium conditions are met in the population. Round all answers properly to 2 decimal digits. Rounding rules: When rounding to 2 decimal digits, look at the third decimal digit. If the third digit is 5 or greater, round up. If the third digit is less than 5, round down.What is the frequency of the non-taster allele (t) in this population?What is the frequency of the taster allele (T) in this population?What is the frequency of the TT genotype? Answer What is the frequency of the Tt genotype?What is the frequency of the tt genotype? Answer How many people in this population are expected to be heterozygous for this locus? Round to the closest whole number.
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the female part of the plant is called the A. stamenB. pistil
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an adaption that helps an organism blend in with the environment is called
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1. What are some different ways that copies of DNA can be passed along? Compare the transfer of DNA in bacterium to the transfer of DNA in a species that uses sexual reproduction. How do the offspring compare to the parents?2. What are the risks of cloning versus the advantages of the genetic variety created by sexual reproduction? What is the cost of sexual reproduction? 3. How many sperm are produced by the average human male each second/day/lifetime?4. What process is used to make sperm cells and egg cells?5. When does a human female produce her eggs?6. Where do eggs mature before they are released? How many eggs does the average human female release per month?7. Describe the path taken by the egg once it is released from the ovary. How does the egg move?8. Where does the fallopian tube lead to?
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Which of the following does the ocean provide? Question 1 options:Over half the oxygen we breatheClimate regulationPollutionFood and medicine
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What struggles do aquatic organisms have that terrestrial ones do not?If you are not going to actually answer the question don't even bother.
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Which of the following increases genetic variation by forming entirely new alleles? Natural selection Genetic drift Mutation Gene flow
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What is the process of mountain building called?
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