please help my teacher wants me to describe photosynthesis and cellular respirations provide as many detials as possible. Think of it as if you are explaining this to a younger student. Please explain why each is important and compare and contrast them.

Explain how organisms could be harmed by high levels of salt from roadways?

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

Which kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm