Given a scientific question, generate a correct answer to it.

Input: Consider Input: The sun and all objects held by it's gravity make up the?

Output: solar system

Input: Consider Input: Normal blood is comprised of nearly half erythrocytes, which is another word for what cells?

Output: red blood cells

Input: Consider Input: In what process is energy from the sun converted to stored chemical energy in an organism?
Output: photosynthesis