How did the separation of earth's continents affect biological evolution?

Which kind of aquatic ecosystem does the photograph most likely show? a. marsh b. swamp c. lake d. river

2. given that most biochemical (other than coal) rocks react with hydrochloric acid, what does that tell you about organisms?

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