He could perform some DNA tests that could show how those species were related. For example, genome sequencing could show all the differences in DNA nucleotides. The number of changes could then be multiplied by the rate of mutations and the result would show how species were related.
Mr. Turner, my American history teacher, taught us about the U.S. home front during WWII. Enjoy!
Answer:
Pollution.
It become reservoir for waste deposition.
Habitat of bacteria growth.
Organisms in them die due to lack of food resources.
It's lead to algal bloom.
Explanation:
Lentic environment is a stationary or still water, i.e water that doesn't flow but it is stationary at one place. Examples are ponds, ditches, reservoirs, lakes , pool, seep.
The major challenges of lentic environment are;
It become reservoir for waste deposition.
Habitat of bacteria growth.
Organisms in them die due to lack of food resources.
It's lead to algal bloom.
