Existing Species

Question 1

Macroevolution:

Question 1 options:

A)is the process by which new species originate from existing species.

B)unlike microevolution never involves mutations.

C)is simply a change in the gene pool of a single species.

D)operates on species over 3 kg only.

Question 2

You were introduced in a short video to several groups of salamanders that serve to illustrate macroevolution in action. Which of the following statements about their story is true?

Question 2 options:

A)As the original population migrated south, it split into geographically isolated subpopulations.

B)By the time that the subpopulations reunited in the south, they could no longer produce offspring.

C)The salamanders became cryptic species that were visually indistinguishable.

D)None of the above is true.

QUESTION 3

How are modern humans distinct from Paranthropus robustus? Was P. robustus a human? Why or why not?

QUESTION 4

Which of the following is not a step of the scientific method?

Question 4 options:

A)Make observations

B)Formulate a hypothesis

C)Make predictions

D)Prove your hypothesis