Which organism is a top producer?
a) algae
b) sharks
c) small fish
d) zooplankton

What would happen if the tubing with the yellow band was placed in a beaker of distilled water?

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

How energy flows through each level in this energy pyramid. is all the matter and energy from one level transferred to the next level?