Question

All of the following statements are correct for Poriferans, except

• A. Eggs and sperms are produced by the same individual
• B. They reproduce sexually as well as asexually
• C. They have an extracellular type of digestion
• D. They are generally marine and mostly asymmetrical animals

Answer 1

The correct option is C They have an extracellular type of digestion

Sponges are hermaphrodite i.e. male and female gamete is produced by same individual. Most of sponges are marine and asymmetric animals. Both sexual and asexual reproduction occur in them.

Sponges have intracellular digestion as food is digested with in food vacuoles inside the cells. There is no extracellular digestion in sponges.