The amount of algae growth in lakes seems to be directly related to the number of bags of phosphate fertilizer sold by the local merchants —
what is the independent and dependent variable for EACH?

is this a psat question, if so do not cheat try your best.

they have identical fossils of organisms that have evolved over time.

both have animal fossils preserved in them due to weathering and erosion.

they contain different fossils because life on earth has changed through time.

the fossils in them were formed on the surface of earth due to exposure to sunlight.

answer; motor (efferent)neurons;