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Assertion Haemocoel in Arthropoda is not...

Assertion Haemocoel in Arthropoda is not lined by the mesodermal epithelium .
Reason Arthropods possess only true coelom .

A

Both Assertion and Reason are true and Reason is the correct explanation of Assertion

B

Both Assertion and Reason are true but Reason is not the correct explanation of Assertion

C

Assertion is true, but Reason is False

D

Assertion is false, but Reason is true.

Text Solution

Verified by Experts

The correct Answer is:
C
The arthopods haave a much reduced coelomic cavity . The space between the gut and body wall is mostly occupied by mucles and organs with blood containing interspaces. These spaces together form the haemocoel , which is not a true coelom as it is not lined by the mesodermal epithelium.
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ARIHANT NEET-ANIMALIA -I (LOWER INVERTEBRATES)-CHAPTER EXERCISES (Taking it together) Medical entrances special format questions (Assertion and reason)
  1. Assertion Haemocoel in Arthropoda is not lined by the mesodermal epith...

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  2. Assertion : Metamerism is the characteristic of annelida Reason : Me...

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  3. Assertion Endotherms are cold-blooded animals. Reason Ectotherms ca...

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  4. Assertion Hydra is a diploblastic animals . Reason Hydra is derived...

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  5. Assertion(A): In sponges, archaeocytes are totipotent. Reason( R): T...

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  6. Assertion : Sponges belong to Porifera Reason : Sponges have canal s...

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  7. Assertion Spongilla and Leucosolenia are structurally similar sponges ...

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  8. Assertion Sponges are less specialised ones. Reason Sponges show lea...

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  9. Assertion : Sponges do not show any animal nature. Reason : Sponges ...

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  10. Assertion In Hydra, both pseudopodia and flagella occur in sensory ce...

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  11. Assertion The coelenteron of Hydra is called gastrovascular cavity. ...

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  12. Assertion Medusa of Obelia is carnivorous . Reason Digestion is bot...

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  13. Assertion : Coelenterates shown altermation of generation. Reason : ...

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  14. Assertion Hydatid vesicle is the characteristic of Echinococcus for ab...

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  15. Assertion Taenia solium has a characteristic uterus. Reason The ute...

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  16. Assertion In Fasciola hepatica, digestion is intracellular. Reason ...

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  17. Assertion Paragonimus is known as lung fluke. Reason Lung fluke spe...

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  18. Assertion Scolex with hooks are present in Taenia Reason Structure ...

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  19. Assertion Nematodes are different from flatworms Nematodes are commo...

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  20. Assertion Telogonic is a condition of ovary Reason The telogonic go...

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