Which of the following ecosystems would contain the GREATEST Biodiversity? Select one:

A dessert ecosystem containing only a few species of reptiles and plants

A marine ecosystems containing some species of marine mammals

A rainforest ecosystem containing thousands of different species of plants, animals, and birds

A pond ecosystem containing several species of fish and birds.

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