Cells a and b are the same size, shape, and temperature, but cell a is metabolically less active than cell b. and cell b is actively converting oxygen to water in cellular respiration. oxygen will diffuse more rapidly into cell because

The answer is: B; the diffusion gradient in cell B is steeper

Cell B actively converting oxygen to water in cellular respiration, therefore the oxygen concentration would be much less when compared to oxygen concentration of cell A.

Diffusion will allow molecule to move from container with higher concentration to container with lower concentration. The difference in concentration will increase the speed, so the speed of oxygen diffusion to cell B would be faster.

the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.