Biology, asked by sharath4269, 1 year ago

what are the salient features of echinoids ?

Answers

Answered by richa141
0
Echinoids are also known as Sea urchins and are archaically called sea hedgehogs. 

They are of the class Echinoidea, they are small in size, spiny and spherical in shape.
 
They feed primarily on algae and are known to move around slowly. 
Answered by Impossible1
1
Echinoids are also known as Sea urchins and are archaically called sea hedgehogs .

They are of the class Echinoidea ,they are small in size , spiny and spherical in shape .

They feed primarily on algae and are known to move around slowly .
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