Which conclusion does the fossil record support?

a. species have changed over time.

b. traits acquired during a lifetime are passed to offspring.

c. earth’s organisms have not changed over time.

d. all of earth’s organisms were formed at the same time.

Study the diagram of a desert food chain . what would most likely happen if the kangaroo rats were killed off and removed from the food chain ?

What advantage does a crop that undergoes vegetative reproduction have over plants that start from the seed? 1points a they store nutrients. b they can travel farther. c they experience more genetic variation. d they only occur in high-resource environments.

Which of the following is the most likely outcome of global warming