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NEET 2021
Exam
NEET
Year
2021
Subject
Zoology
Chapter
Structural Organisation in Animals

NEET 2021 · Zoology · Structural Organisation in Animals

Which of the following characteristics is incorrect with respect to...

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

Options

  1. AA ring of gastric caeca is present at the junction of midgut and hindgut.
  2. BHypopharynx lies within the cavity enclosed by the mouth parts.
  3. CIn females, 7th−9th{7}^{\text{th}} - {9}^{\text{th}} sterna together form a genital pouch.
  4. D10th{10}^{\text{th}} abdominal segment in both sexes, bears a pair of anal cerci.

Correct answer

A. A ring of gastric caeca is present at the junction of midgut and hindgut.

Step-by-step solution

At the junction between foregut and midgut, 6−86 - 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.
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