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.
Constellation is a form a pattern that resembles an animal, mythological character, or object
Answer:
11.7 g in 1 L of water.
Explanation:
Molarity (M) or Molar concentration is a measure used in chemistry for solutes in a solution.
It is defined as mol/ L (number of moles per litre).
0,2 M means we have 0,2 mol/ L
In order to know how many grams this means we need to look up the molecular weight of the solute. In this case NaCl: 58.443 g/mol
= 
X= 
X= 11.69 g
The solution has 11.69 g of NaCl in 1 L of water since its an adequate polar solvent for NaCl dissolution.
