Macroevolution

Question 1

What is macroevolution?

Answer 1

Genetic change that leads to the formation of a new species over an extended period of time.

Question 2

What makes macroevolution different from smaller evolutionary changes?

Answer 2

Macroevolution results in new species, not just variation within a species.

Question 3

Does evolution happen at a constant rate across all species?

Answer 3

No. Evolution does not occur at exactly the same rate for all species all the time.

Question 4

What does fossil evidence support about evolutionary rates?

Answer 4

Evolution can occur at different rates, in different clades, and at different times.

Question 5

Why are fossil records critical to understanding macroevolution?

Answer 5

They show long‑term genetic changes and the appearance of new species over time.

Question 6

Summarize macroevolution in one sentence.

Answer 6

New species arise over long periods of time, and the speed of evolution varies depending on the group and environment.

Question 7

What do the different beak shapes in the image represent?

Answer 7

Adaptations over time that can eventually lead to speciation.