Question

Which of these is the strongest evidence that complex organic molecules could have evolved from simpler molecules?

A. All photosynthetic organisms use simple molecules to make complex organic molecules.
B. Decomposing organisms break down complex organic molecules into simpler molecules.
C. All deposits of coal contain many different kinds of organic molecules.
D. Organic molecules made by one organism can be used by another organism to build its own organic molecules.

Answer 1

The correct answer would be option A.

Explanation:

The photosynthetic organism is an organism that makes glucose from water and CO₂ molecule with the help of light energy in the process of photosynthesis.

Glucose is a complex organic molecule that is synthesized by simple molecules water molecule and CO₂ by photosynthetic organisms is the strongest evidence to establish that, complex molecules are evolved from simpler molecules.

Thus, the correct answer would be option A.