Question

1. which type of organic molecule is the main energy source for living things?

a. lipids
b. carbohydrates
c. nucleic acids

1. what is the monomer of proteins?

11
12

Explanation:

Carbohydrates are the main energy source for living things. They are broken down into glucose, which is used in cellular respiration to produce ATP (adenosine triphosphate), the energy currency of the cell. Lipids are also an energy source but are more for long - term energy storage. Nucleic acids (like DNA and RNA) are involved in genetic information storage and transfer, not the main energy source.

Answer:

B. carbohydrates