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Question

Biology Question on Eco-System

Which of the following is not of biotic origin?

A

Vinblastine

B

Malathion

C

Pyrethrin

D

Azadirachtin

Answer

Malathion

Explanation

Solution

Malathion is an organo-phosphate parasympathomimetic which binds irreversibly to cholinesterase. It works by attacking the nervous system resulting in insect death. Malathion is widely used as pesticide in agriculture.