Concept:The type of organisms found in a habitat helps to identify whether it is aquatic or terrestrial.
Explanation:Tilapia and planktons are organisms that live in water.
Their presence in habitats W and Y shows that these habitats contain water and support aquatic life.
So, the organisms present indicate that the habitat is aquatic.
The absence of grasses, lions, or antelopes does not prove that a habitat is terrestrial.
Therefore, the best conclusion is based on the type of organisms present.
Answer:C. type of organisms present indicate that habitat is aquatic