Lab: Natural Selection-Standard Bio 4.2

Question 1

Did you read the Student Guide carefully?

Revolt · Accepted Answer

A: yes

Question 2

In the lab, you will change the number of birds with each beak phenotype for the second and third generations. What row of the data table will be the basis for computing new numbers?

Revolt · Accepted Answer

E: Percentage of food eaten by the flock

Question 3

The sentences below combine to form a strong explanation. Check each sentence that resembles part of your response.

Revolt · Accepted Answer

A: A percentage compares the number of birds in the flock to the total number of birds in all flocks.; B: If the percentage is high, the flock is more successful, so the flock should grow.; C: If the percentage is low, the flock is struggling to eat, so the flock should shrink.

Lab: Natural Selection-Standard Bio 4.2 Answers

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