Acell's membrane is composed of two layers of lipid molecules. what is the main function of a cell membrane?
a.
store energy for later use
b.
direct the functions of the cell's organelles
c.
construct long chains of amino acids
d.
control what enters and exits the cell

the answer is c. it will give up it's valence electron to the other atom.

in the year 2850, humans successfully colonized mars. the martian modules that were constructed could hold only a small population of people. it is now a century later, and the population on mars has grown to 600 people. of the current mars population, 45 people express the recessive phenotype for phenylketon- uria (pku) syndrome (pp genotype).

explanation: