Darwin's Theory

Question 1

In this lab, the three flocks of birds changed in numbers between generation 1 and generation 3. Why? Check all reasons.

Revolt · Accepted Answer

If a flock’s beak type made it easier to pick up the available food, the flock grew.; If a flock’s beak type made it harder to pick up the available food, the flock shrunk.

Question 2

How does nature “select” phenotypes, such as bird beaks? Check all correct explanations.

Revolt · Accepted Answer

Traits that suit the environment enable an organism to reproduce in greater numbers.; Traits that do not suit an environment make it harder for an organism to stay alive and reproduce.

Question 3

Which possible outcome below would not have supported the hypothesis?

Revolt · Accepted Answer

if generation 3 had flock distributions similar to those shown in the graph below

Darwin's Theory Answers

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