What do cells need to do between divisions to make sure that they don't get smaller and smaller?

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

In this picture, groups of pigment that capture light energy are located on the

Why is there more biomass at the producer level that at the consumer levels ? how does this relate to the 10% rule ?