STANDARDZoology-Digestive System
STANDARD Zoology Cockroach MCQ Question
Type: MCQ-conceptual-Medium
Which of the following correctly state as it happens in the common cockroach?
A
Malpighian tubules are excretory organs projecting out from the colon.
B
Oxygen is transported by haemoglobin in blood.
C
Nitrogenous excretory product is urea.
D
The food is grinded by mandibles and gizzard
Correct Answer
Option D
Detailed Explanation
In cockroaches, food is ground by the mandibles and gizzard, which is a muscular part of the digestive system.
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