Which of the following is NOT evidence that whales and dolphins changed over time and once lived on land? 1. They have lungs

2. They have arm bones that look like those bones of land-dwelling organisms.

3. They have small hairs.

4. They live in the water.

In this experiment you were asked to present three possible mechanisms. describe those mechanisms here and include drawings of those mechanisms. how will the bromination of trans-cinnamic acid and trans-stilbene allow you to distinguish between the three possibilities? what would you expect to find in your data in each scenario?

What type of genetic drift would be simulated if all the beans that were not selected died out?

How does the author's purpose in this passage differ from an author writing about her personal struggle living with asthma?