Why are the leaves of many plants broad and flat? a. to prevent water loss from transportation b. to transport nutrients through the plant c. to obtain energy by breaking bonds in glucose d. to capture light energy used for photosynthesis

What is thought to have caused the mass extinction at the end of the cretaceous period?

When a gasoline engine burns gasoline, what type of chemical reaction is occurring?

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