Using traditional classification methods, which of the following sets of organisms would be the most difficult to classify?
-Two organisms that look nearly identical
-Three organisms that are about the same size
-Three organisms that live very close to each other
-Four organisms that eat similar foods

D.)

Explanation:

Cladograms can compare more animals at one time than traditional classification methods.

explanation:

on disadvantage of hydroelectric power is the cost. another disadvantage of using hydroelectric power is finding a water source powerful enough to harvest hydroelectric power.

the endomembrane system i think