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Which of the following is not a characte...

Which of the following is not a characteristic feature of phylum mollusca?

A

They are bilaterally symmetrical, triploblastic and coelomate animals

B

Unsegmented animals

C

They are usually dioecious and oviparous with indirect development

D

Respiratory organs are feather like gills in all molluscs and are present in the visceral hump, help in respiration and exretion.

Text Solution

Verified by Experts

The correct Answer is:
D
Respiratory organs are feather like gills in all molluscs and are present in the visceral hump, help in respiration and exretion.
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AAKASH INSTITUTE-ANIMAL KINGDOM (GENERAL ACCOUNTS & NON-CHORDATES)-Exercise
  1. Blood of most artropods is

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  2. Excretory organs of arthropods are

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  3. Which of the following is not a characteristic feature of phylum mollu...

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  4. File-like rasping organ for feeding called as radula is present in all...

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  5. Mollusca is differentiated from other by

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  6. Osphradium of Pila is meant for

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  7. In which of the following class of phylum mollusca, torsion occurs?

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  8. Ink glands for protection and locomotion by jet propulsion mechanism i...

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  9. Trochophore larva occurs in

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  10. Pearls are obtained from

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  11. Which of the following statement is incorrect about circulatory system...

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  12. Eye of which molluscan group resembles vertebrate eye?

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  13. In which of the following phylum larvae are bilaterally symmetrical an...

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  14. Which of the following is not a characteristic feature of phylum echin...

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  15. Aristotle's lantern which helps in mastication is a characteristic fea...

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  16. Ambulacral grroves are absent in

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  17. In which of the following phylum all the animals are exclusively marin...

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  18. Bipinnaria is the larval stage of

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  19. Which of the following occurs in molluscs but not in Echinoderms?

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  20. Which of the following statement is incorrect about the phylum hemicho...

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