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Which of the following features is not present in Periplaneta americana?

  1. A
    Indeterminate and radial cleavage during embryonic development
  2. B
    Exoskeleton composed of N – acetylglucosamine
  3. C
    Metamerically segmented body
  4. D
    Schizocoelom as body cavity

Solution & Step-by-step Explanation

Periplaneta americana (Cockroach) is an arthropod. Arthropods exhibit determinate and spiral cleavage. Radial and indeterminate cleavage is a characteristic of deuterostomes (like echinoderms and chordates).

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Which of the following features is not present in Periplaneta americana?
A
Indeterminate and radial cleavage during embryonic development
B
Exoskeleton composed of N – acetylglucosamine
C
Metamerically segmented body
D
Schizocoelom as body cavity

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