Name three characteristics of the cells that make up the muscle tissue in the heart.

2. given that most biochemical (other than coal) rocks react with hydrochloric acid, what does that tell you about organisms?

Cells a and b are the same size and shape, but cell a is metabolically quiet and cell b is actively consuming oxygen. oxygen will diffuse more quickly into cell because . b the oxygen molecules inside cell b have a higher kinetic energy b. a its membrane transport proteins will not be saturated c. a the diffusion gradient there is shallowerd. b the diffusion gradient there is steeper

What is the meaning of exocytosis ?