STRUCTURAL ORGANISTION OF PLANTS AND ANIMALS
STRUCTURAL ORGANISATION IN ANIMALS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Indeterminate and radial cleavage during embryonic development
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Exoskeleton composed of n-acetylglucosamine
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Metemerically segmented body
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Schizocoelom as body cavity
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Detailed explanation-1: -So, the correct answer is ‘Indeterminate and radial cleavage during embryonic development’.
Detailed explanation-2: -American cockroach (Periplaneta americana) 3.4) is a large species with adults 34–53 mm in length. It is reddish brown, with substantial variation in light and dark patterns on the pronotum. Adults are winged and capable of flight. Nymphs typically complete development in 13–14 months while undergoing 13 molts.
Detailed explanation-3: -The development of Periplaneta americana is paurometabolous, i.e., there is development through nymphal stage.
Detailed explanation-4: -So, the correct option is ‘Indeterminate and radial cleavage during embryonic development’.
Detailed explanation-5: -Solution: Indeterminate and radial cleavage during embryonic development is not a feature of Periplaneta americana.