Unit 1: Nature of Science

Question 1

Dependent variable

Answer 1

Factor that is measured or observed

Question 2

Independent variable

Answer 2

Factor that is intentionally changed

Question 3

Autotrophs

Answer 3

Use light energy (usually) to make food

Question 4

Heterotrophs

Answer 4

Eat other organisms to gain food energy

Question 5

Stimulus

Answer 5

Change in environment, either external or
internal, that causes an organism to react

Question 6

Homeostasis

Answer 6

A state of internal balance