Ascaris is characterised by

Absence of true coelom and presence of metamerism

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Presence of neither true coelom nor metamerism

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Presence of true coelom but absence of metamerism

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Presence of true coelom and metamerism

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Solution

The correct option is B
Presence of neither true coelom nor metamerism

Ascaris belongs to phylum Aschelminthes. It is a pseudocoelomate and does not show metameric segmentation.

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Q. Classify the following organisms based on the absence/presence of true coelom (i.e, acoelomate, pseudocoelomate and coelomate)

Spongilla, Sea anemone, Planaria, Liverfluke Wuchereria, Ascaris, Nereis, Earthworm, Scorpion, Birds, Fishes, Horse.

Question 40
Classify the following organisms based on the absence/presence of true coelom (i.e., acoelomate, pseudocoelomate and coelomate)
Spongilla, Sea anemone, Planaria, Liver fluke, Wuchereria, Ascaris, Nereis, Earthworm, Scorpion, Birds, Fishes, Horse.

Q.
Write short notes on:
(a) Coelom (b) Metamerism (c) Notochord

Bilateral symmetry, metameric segmentation, coelom and open circulatory are features of

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Ascaris is characterised by

The correct option is B Presence of neither true coelom nor metamerism Ascaris belongs to phylum Aschelminthes. It is a pseudocoelomate and does not show metameric segmentation.

The correct option is B
Presence of neither true coelom nor metamerism

Ascaris belongs to phylum Aschelminthes. It is a pseudocoelomate and does not show metameric segmentation.