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Question
Which of the following is CORRECTLY stated as happens in common cockroach?
Options
The food is grinded by mandibles and gizzard.
Malpighian tubules do not help in removal of excretory product from haemolymph.
Oxygen is transported by haemoglobin in blood.
Nitrogenous excretory product is urea.
MCQ
Solution
The food is grinded by mandibles and gizzard.
Explanation:
Malpighian tubules in cockroaches aid in the elimination of excretory products from haemolymph.
There is no pigment transfer.
Uric acid is a nitrogenous excretory product.
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