Question

Fluctuations in the phosphorus cycle in aquatic ecosystems _______.
a.
can lead to changes in the growth rates of aquatic populations
b.
are never caused by human impact on the environment
c.
lead to a decrease in the amount of phosphorus found in sediment
d.
never occur naturally


Please select the best answer from the choices provided

A
B
C
D

Answer 1

A

Fluctuations in the phosphorus cycle can change the availability of a limiting nutrient, altering primary productivity and thus the growth rates of algae and other aquatic populations.