Question

The larva of Echinoderms is

• A. Nauplius larva
  
• B. Dipleurula larva
• C. Zaoea larva
• D. None of the above

Answer 1

The correct option is B Dipleurula larva

Echinoderms are the organisms which are characterized by the central disc shaped body. They have five arms which have been modified to form tube feet. The gastrula stage of the organism develops into a basic larval type. This larvae is called as dipleurula larva. The larvae is characterized by bilateral symmetry. The name of the larvae means the organism have two sides.
There is a single band of hair-like projections or cilia which is found on each side of the body. There are cilia present in the front of the mouth and anus. This type of larvae is found among the classes of echinoderms.
Thus, the correct answer is option B.