Question: What does an adult sponge have?
Options:
- (A) gills
- (B) Length
- (C) polyps
- (D) Energy.
- (E) alveoli
- (F) a cuticle
- (G) retina
- (H) Energy
Let's be accurate as possible and think step-by-step.
Adult sponges are sessile. Polyps can be peduncular or sessile, and are usually viral in origin. Adult sponges have polyps.
The answer: (C).