NEET 2016 Biology question

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

(1)Schizocoelom as body cavity
(2)Indeterminate and radial cleavage during embryonic developmentCorrect
(3)Exoskeleton composed of N - acetylglucosamine
(4)Metamerically segmented body

Answer: (2)

Solution

Periplaneta americana (cockroach) is an arthropod: a protostome, schizocoelomate (the coelom, a haemocoel, forms by splitting of the mesoderm), with a chitinous exoskeleton (chitin is a polymer of

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Question ID VK-091958