What is plant tissue culture. Please answer.

Which of the following is the best definition of aerobic respiration? o a. the cellular process that releases energy by breaking down glucose o b. physical activity that involves the repeated motion of large muscle groups o c. physical activity that increases heart rate and breathing rate o d. the cellular process that converts solar energy to chemical energy

What is the identity of the planets?

Hemoglobin is a proton that carries oxygen around the body what is hemoglobin made from