Question

Which among the following statements are incorrect about coelenterates?

(a) Coelenterates are acoelomates

(b) Tentacles have stinging capsules called cnidocytes that help in catching of prey

(c) In most of the cases, medusa is sessile

(d) Corals have skeleton that is made up of CaCO3

I got this question by my college professor while I was bunking the class.

I'd like to ask this question from Classification of Animal Kingdom into Different Phylum-1 topic in chapter Animal Kingdom of Biology – Class 11

Answer 1

The correct option is (c) In most of the cases, medusa is sessile

Easy explanation: Coelenterates are acoelomates. Tentacles have stinging capsules called cnidocytes that help in catching of prey. In most of the cases, polyp is sessile. Corals have skeleton that is made up of CaCO3.