Question

describe the appearance of crab

Answer 1

Answer:

Crabs are decapod crustaceans which have a very short tail and are covered with a thick shell, or exoskeleton and are armed with a single pair of claws. ... Crabs are decapod crustaceans which have a very short tail and are covered with a thick shell, or exoskeleton and are armed with a single pair of claws.

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Answer 2

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Crabs are generally covered with a thick exoskeleton, composed primarily of highly mineralized chitin, and armed with a pair of chelae (claws). Crabs vary in size from the pea crab, a few millimeters wide, to the Japanese spider crab, with a leg span up to 4 m (13 ft).

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