Question

Animals release energy needed for growth and repair through a _____________.
A. a series of chemical reactions during cellular respiration
B. a series of chemical reactions during photosynthesis
C. a series of chemical reactions that change light energy into sugars
D. a series of chemical reactions that change carbon dioxide and water into sugars

Answer 1

The correct answer is: **A. a series of chemical reactions during cellular respiration**.

Animals obtain energy by breaking down glucose and other organic molecules through cellular respiration, which involves a series of chemical reactions.