Sponges May Gain Nutrition by All of the Following Modes

Question

Sponges may gain nutrition by all of the following modes EXCEPT
A)filtration.
B)trapping of food items by the collar.
C)active transport of nutrients.
D)phagocytosis.
E)active predation.

Accepted Answer

Sponges are sessile, filter-feeding animals that rely on filtering out the nutrients from the water that passes through their bodies. They can capture small food particles suspended in the water column by filtration or trapping them with their collars. They can also ingest larger food items through phagocytosis, which is a process by which the cell engulfs and engulfs the food particle. However, sponges are not capable of active predation, which involves actively hunting and capturing prey. Thus, E is the correct answer as active predation is not a mode of nutrition for sponges.