When cells use chemical energy obtained from food, this is known as a. photosynthesis. b. respiration. c. mitosis. d. digestion.

A. photosynthesis, is the process plants use to create food using energy from sunlight.

b.

Explanation:

Eukaryotic cells use three major processes to transform the energy held in the chemical bonds of food molecules into more readily usable forms — often energy-rich carrier molecules. Adenosine 5'-triphosphate, or ATP, is the most abundant energy carrier molecule in cells.

it is either c or d and i know for sure it is not a or b

brain development. a child's brain undergoes an amazing period of development from birth to three—producing more than a million neural connections each second. the development of the brain is influenced by many factors, including a child's relationships, experiences and environment.

explanation: