If oxygen atoms are in low concentration outside of a cell, but the cell requires more oxygen, how will the cell move the oxygen inside the membrane?
a. diffusion
b. osmosis
c. active transport

C) Active transport

Explanation:

Active transport involves the movement of molecules across a membrane from a region of low concentration to a region of high concentration against the concentration gradient. This applies to the oxygen atoms which are in low concentration outside of a cell but requires more oxygen to move inside the membrane.

answer: blah

explanation:

bc blah

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs