The answer is A because the subject is responding to something that is going on outside of it, if that makes any sense :)
Hope this helps! Have a great day!
If I remember that abiotic means not living then rocks, soil, air.
The molecule will enter the cell using a channel protein.
Answer:
Plants have cell walls, mammals have cell membranes.
On the phase diagram, conditions of pressure and temperature, at which two phases coexist in equilibrium are separated by a line.
