Paleontologists examine fossils embedded in sedimentary rock to help trace the history of animals that exist today and animals that have become extinct. What can the fossil record tell us about animals? A. How animal behavior changes in response to new habitats

B. How animals have changed in different ways over time

C. Why animals all over the world look very different

D. Why all species of animals get larger over time

Astudent wants to test the hypothesis that fertilizer improves the growth rate of grass seeds. to test this hypothesis, the student put the same amount of grass seed in 3 containers with the same type of soil. the student measured the growth at the end of the week. all plants received equal amounts of water and sunlight. if you were asked to graph this data, what would you place on the x-axis? a. fertilizer b. water c. plant growth d. week one