Answer:
The answer to your question is: The second option is correct.
Explanation:
Pospholipid bilayer is a thin lipid layer that protects and isolate the cell from the enviroment, also it controls the the entrance of molecules to the cell and ejects wastes. So it is extremely important.
it is not important This could not be the right answer, bilater is very important.
to maintain a proper internal environment I think this is the right answer because among others, membranes mantain a proper internal environment.
to link cells together This option is incorrect, because membranes do not link cells.
S waves travel through solids
Answer:
F1 and F2 Generations
The offspring of the P generation are called the F1 (for filial, or “offspring”) generation.