What is the name of the functional group that is necessary for dehydration reaction to occur

 Dehydration synthesis involves the formation of new chemical bonds between two molecules which leads to the formation of new compounds. A reaction occurs with the loss of water molecule at each step. The loss of water molecule can occur due to reaction between two functional groups like –OH, -NH2 or –COOH.

Explanation:

the answer is z.

the human body has five levels of organization. level 1: cells. cells are the basic units of life and form the first level of organization. cells in the human body have specific functions. examples include nerve cells, blood cells, liver cells, and so on.

not always but somethings can be reproduced in a laboratory.