Question

1 define eucoelo?
2 write any two special features of comb jellies
3 mention locomatory structure of annelids
4 what is the different between internal and external fertilisation
5 which type of symmetry is founds is echinoderms
6 mention different regions of body of hemichordates
7 enlist the salient features of phylum arthropod
8 with neat labled diagram write the fundamental characteristic of chordates
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Answer 1

Answer:

1: A coelom is a hollow, fluid-filled cavity found in many living things, where it acts as a protective cushion for their internal organs. In some animals, such as worms, the coelom acts as a skeleton. The coelom also allows the internal organs to move and grow independently of the outer layer of the body wall.

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