A car is going down a ramp. When the car is half way down the ramp, it has a. Only potential energy
b. Only kinetic energy
c. Potential and Kinetic energy
d. There is no energy

What would happen to the nutrients in an ecosystem if decomposers, such as bacteria, didn’t exist there?

What will happen to a population of predators if there is a sudden, temporary increase in the number of prey? a. the population of predators will be uniform with no change. b. the population of predators will increase first and then decrease slowly. c. the population of predators will increase continuously.

Which of the following is a testable hypotheses?