The reaction shown below is known as what type of reaction? Reactants → Products + Heat

А. activation
B. endothermic
c. enzymes
D. exothermic

What protects the lining of the stomach from acidic gastric juices?

Drag each tile to the correct box. arrange the layers and faults from oldest to youngest.

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