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Arthropoda

Arthropods do...

Question

Arthropods do not possess:

A

True coelom

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B

Exoskeleton

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C

Haemocoel

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D

Malpighian body

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Solution

The correct option is D Malpighian body
Members of the phylum Arthropoda have a true coelom and chitinous exoskeleton.
These animals have an open circulatory system. Hence, their body cavity is called a haemocoel, through which blood circulates.
Excretion takes place through the Malpighian tubules and not the Malpighian body. Arthropods do not possess a Malpighian body.

Thus, the correct answer is option D.

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ii) Digestive cavity is found in acoelomates, pseudocoelmates as well as coelomates
iii) The body cavity of arthropods and non-cephaloped molluscs is called haemocoel
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(i) True coelom is a body cavity which arises as a cavity in the embryonic mesoderm.
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