Which of the following characters are not found in cockroach a.compound eyes b. Two pairs of wings c. No jointed appendages d.threepairs of legs with joined appendages
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I think it's d.three pairs of legs with joined appendages.
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Answer: (C) jointed appendages
Explanation:
Cockroaches possess jointed appendages which is the reason that they are placed under Arthropoda.
Cockroaches are placed in the Phylum Arthropoda not only because of the jointed appendages which are present but also due to their exoskeleton which is made up of a hard substance called as chitin.
The word arthropod itself means jointed legs which is why the organisms which have jointed legs are appendages are placed under this phylum.
In many of the organisms placed under Arthropoda, some animals have developed there jointed appendages into some other organs of body like antenna, mouthparts or reproductive organs.
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