Question

Special character of Coelenterates is
(a) polymorphism
(b) nematocytes
(c) flame cells
(d) hermaphroditism

Answer 1

Explanation:

(a) polymorphism os the answer

Answer 2

Answer is option "b"

Explanation:

• The name Cnidaria is derived from the cnidoblasts/cnidocytes present in the organism that comprises of stinging capsules or nematocytes, These are for defense and protect the organism from predators or other harm. Coelenterates are acoelomate.
• They have a single opening which acts as mouth and anus. The opening is surrounded by tentacles. The tentacles have the special type of cells called nematocytes are present in Coelenterata only. These cells are used for food catching, defensive and offensive purposes.
• Hence, the right answer is option b "nematocytes"