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Question Number 1:

Consider the following scenario:

You are a scientist observing rodents on the Galapagos Islands. You notice that the introduction of new bird of prey has limited the number of rodents.

What term best describes the factor that is limiting the number of rodents the environment can support?

A. selective pressure

B. fitness

C. food supply

D. variation

Question Number 2:

Consider the following scenario:

In an aquatic bird population, some birds have long legs. Other birds have short legs. The food supply is minimal. The birds with long legs are able to wade farther into the water where they can find fish. The birds with long legs become more common.

What scientific term best describes this scenario?

A. natural selection

B. mutation

C. selective pressures

D. fitness

Question Number 3:

What relationship exists between changes in the environment and variations?

A. Changes in the environment can only cause new variations to appear.

B. Changes in the environment cannot influence the fitness of an organism.

C. Changes in the environment can act only on existing variations in a population.

D. Changes in the environment cannot change which traits are advantageous.

Question Number 4:

Over time, the variation that gives an advantage

A. becomes more common in the population.

B. can limit the number of selective pressures.

C. can limit the number of individual organisms.

D. becomes less common in the population.

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29 answers
  1. We do not do your homework for you. Although it might take more effort to do the work on your own, you will profit more from your effort. We will be happy to evaluate your work though.

    What are your choices?

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  2. ummmm read the questions PsyDAG

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  3. Im usually kind, but i really want this answer so plse give me the answers!!!!!!!!!

    Thank you, ;)

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  4. i'll tell you the answers

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  5. Ok thanks

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  6. 1) A
    2) B,C,D
    3) B
    4) B

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  7. correct me if i'm wrong

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  8. You are sooooooo wrong the right thang Is
    1.c
    2.b
    3.a
    4.c
    This is right god bless

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  9. can we get words for this? I started the test and then i got on the other computer and my a was my c on the different computers.

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  10. i got
    d
    d
    d
    c

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  11. put down the word answers for the quiz

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  12. 1) Selective pressure
    2) Natural selection
    3) Changes in the environment can act only on existing variations in a population.
    4) becomes more common in the population
    Your welcome :)

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  13. 1. selective pressure
    2. natural selection
    3. changes in the environment act only existing variations in a population
    4. becomes more common in the population

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  14. Thanks guys! lol im so bord today like if you agree 😜

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  15. Sasageyo is 100% correct. I'm so tired 😴😩 schools so stressful

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  16. Nah, schools not stressful, maybe if you studied more. Im in 8th grade btw.

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  17. DCAA

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  18. @Candi School can be stressful. It can cause stress witch can lead to anxiety and or depression. Please be mindful and educate yourself. It may not be stressful you but it can be for others.

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  19. Sasageyo Is right! I got a 100% you can trust them :D We’re all in school together remember we gotta struggle to make the most improvements

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  20. Sasageyo is totally right

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  21. Dont tell me to study more just czuse your gifted doesnt mean i am. Its stressful and im learning it juat by reading this

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  22. I have 10 questions😅

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  23. im sooo tired lol

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  24. PsyDAG on some post you say we dont give you your answers and on others you give people the answers 🤨

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  25. i have 10 questions anybody have the answer to that?

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  26. 1. Variation

    2. Variations can lead to either an increase or decrease in fitness

    3. Phenotype

    4. The light-colored moths are most common due to antipollution
    regulations

    5. A mouse that needs less water

    6. Ability to survive with less food

    7. If there are a wide variety of traits in a population, it is more likely that some individuals will be able to survive and reproduce

    8. Reasoning

    9. The curve becomes narrower and taller

    10. Raising chickens and having larger ones reproduce in order to produce more meat

    Your welcome 😋

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  27. 1. selective pressure
    2. natural selection
    3. Changes in the environment can act only on existing variations in a population.
    4. becomes more common in the population.
    Have an amazing day!

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  28. i have 25 questionss help pleaseeee !!

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  29. guys its obviously
    d
    c
    a
    b
    c
    a
    b
    b
    d
    c
    a
    d

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