In alimentary canal, food get digested by the action of many enzymes secreted by various glands including Liver, Pancreas and salivary glands....
We would need to see the insect mouth to help you
Answer:
The correct answer is sodium.
Explanation:
First of all sodium do not act as a functional group and second sodium has high tendency to form bond with high electronegative element.Carbon is not an electronegative element.
The other mentioned functional groups in the question such as hydoxyl group,phosphate group and carbonyl group can easily form bond with carbon atom.