Which of the following statements is correct for sponges without exception?

Options

A. They all have calcareous spicules.
B. They have high regenerative power.
C. They are found only in marine water.
D. They are all radially symmetrical.

Answer

B

Explanation

All sponges have high regenerative power. Their skeleton may consist of calcareous or siliceous spicules.Some sponges live in freshwater e.g. Spongilla. Most of the spnges are asymmetrical, some are radially symmetrical.