Question

Question 1 of 25

Which element forms the "backbone of many of the molecules in living
things?
A. Calcium
O
B. Carbon
O C. Hydrogen
O D. Oxygen

Answer 1

B. Carbon

Step-by-step explanation:

in your body, including proteins, DNA, RNA, sugars, and fats. These complex biological molecules are often called macromolecules; they're also classified as organic molecules, which simply means that they contain carbon.