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

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

anonymous · Answer

Hmmm. I am thinking it is probably a.  I know detergents have P and they cause problems, can't be d, because P is found in phosphates minerals.   What do you think?

bioepic · Answer

A!!