Question

1. give two examples from the reading of how living things respond to changes in their environment.
2. if light is applied to a human eye, how does it respond?
3. describe homeostasis.

Explanation:

For question 23, the pupil of the human eye constricts in response to light to control the amount of light entering. For question 24, homeostasis is the ability of an organism or system to maintain a stable internal environment despite external changes. For question 33, plants grow towards light (phototropism) and animals may migrate to more favorable climates when environmental conditions change.

Answer:

1. The pupil constricts.
2. The ability to maintain a stable internal environment despite external changes.
3. Plants exhibit phototropism; animals may migrate.