Phylum Echinodermata: Class Echinoidea
How many numbers of Ossicles in sea urchin:
32
34
35
56
35
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Larva of sea urchin is named as:A. bipinnaria larva
B. Muller’s larva
C. planula larva
D. pluteus larva
Approximate number of species that are included in class Echinoidea is:
A. 1000
B. 4000
C. 2000
D. 5000
Chewing apparatus in sea urchin is named as:
A. Aristotle’s lantern
B. chemoreceptors
C. photoreceptors
D. sinus glands
Members of echinoids have a large
A. arm
B. disk
C. coelom
D. foot
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