Question

1.explain about echinoderms with example. 2.list out salient features of phylum chordata 3.draw a neat labelled diagram of a)starfish b) balanoglosses ​

Answer 1

Answer:

1. echinos means spiny and derma means exoskeleton hence the organisms with spiny exoskeleton are known as echinoderms examples asterias (star fish)

2. chordates are the organism in which notochord is present