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

Answer 1

The correct answer is:
**a. can lead to changes in the growth rates of aquatic populations**

Fluctuations in the phosphorus cycle can affect nutrient availability in aquatic ecosystems, which in turn influences the growth rates of aquatic plants and algae, ultimately impacting the entire aquatic food web.