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Which of the following is correct for th...

Which of the following is correct for the common cockroach ?

A

1.Malpighian tubules are excretory organs projecting out from the colon

B

2.Oxygen in transported by haemoglobin in blood

C

3.Nitrogenous excretory product is urea

D

4.The food is ground by mandibles and gizzard

Text Solution

Verified by Experts

The correct Answer is:
D
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