Answer:
Chemiosmosis is the movement of ions across a semipermeable membrane bound structure, down their electrochemical gradient. An example of this would be the formation of adenosine triphosphate (ATP) by the movement of hydrogen ions (H+) across a membrane during cellular respiration or photosynthesis.
A force of attraction is the type of force that acts between unlike magnetic poles.
Answer:
A
A because it is talking specifically about two different pieces within the human body which have two different functions
Answer:
C. An organism that was brought to an area by humans many centuries ago