Question

EXERCISE
Very Short Answer Type Questions:
• A. Multiple Choice Questions (MCQ):
3. Special type of cell present in cnidaria is
(a) Colloblast cell, (b) Cnidoblast cell, (c) Choanocyte cell, (d) Lasso cell. 4. Phylum having maximum number of
species is-(a) Annelida, (b) Arthropoda, (c) Mollusca, (d) Echinodermata. 5. Pseudocoelom is found in phylum-
(a) Annelida, (b) Arthropoda, (c) Platyhelminthes, (d) Aschelminthes. 6. The phylum having second largest number
of animal is-(a) Arthropoda, (b) Mollusca, (c) Porifera, (d) Cnidaria. 7. Most important structural peculiarity of ctenophora is-(a) Presence of comb plate, (b) Absence of cnidoblast cell, (c) Absence of true coelom, (d) Diploblastic animal. 8. Excretory structure in flat worm is-(a) Nephridia, (b) Malpighian tubule, (c) Flame cell, (d) Kidney.
9. Pearloyster belongs to phylum-(a) Arthropoda, (b) Echinodermata, (c) Mollusca, (d) Annelida. 10. The only reptile
having four chambered heart is-(a) Lizard, (b) Crocodile, (c) Turtle, (d) Snakes. 11. Dinosaurus belonged to which
group of animals-(a) Amphibia, (b) Mammalia, (c) Cyclostomata, (d) Reptilia. 12. Four chambered heart is found
in-(a) Aves, (b) Mammalia, (c) Vertebrata, (d) Both Aves and Mammalia.
[Each question carries 1 mark]
1. Canal System is found in- (a) Cnidaria, (b) Ctenophora, (c) Porifera, (d) Echinodermata. 2. Diploblastic






Answer it fast please​

Answer 1

Answer:

1.porifera

3. cnidoblast cells

4. arthropods

5. aschelminthes

6.mollusca

7.presence of comb plate

8.flame cells

9.mollusca

10. crocodile

11.reptilia

12.both aves and mammalia

Explanation:

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