Question

Write the name of at least one organism that possess the characters
a) Radial symmetry with true body cavity and water vascular system
b) Jaw less vertebrates which are ectoparasites on some fishes
c) Collar cells with spongin fibres and osculum ​

Answer 1

Answer:

a) Phylum Echinodermata

1)Asterias

2)Echinus

b) Class Cyclostomata

1)Petromyzon (Lamprey)

2) Myxine (Hagfish)