Q146 / 200 · NEET 2021 · Zoology

Which of the following characteristics is incorrect with respect to cockroaches?

  • Correct answer
    A
    A ring of gastric caeca is present at the junction of midgut and hindgut.
  • B
    Hypopharynx lies within the cavity enclosed by the mouth parts.
  • C
    In females, 7th -9th  sterna together form a genital pouch.
  • D
    10th  abdominal segment in both sexes, bears a pair of anal cerci.

Solution

At the junction between foregut and midgut, 6-8 finger-like tubular structures are present called hepatic caeca or gastric caeca. These hepatic caeca help in the secretion of digestive enzymes and absorption.

Hence, the correct answer is option: 'A'.

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