Multiple choice

The important feature of sponge is

  1. choanocytes

  2. sexual reproduction

  3. coelenterone

  4. herbivorous feeding

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Choanocytes (collar cells) are the defining feature of sponges, as they are unique to the phylum Porifera and are responsible for creating water currents and capturing food particles.