Question

a biologist is studying a structure that is made up of two layers of phospholipids. what is she most likely studying?
dna molecules
cell membranes
fats
wax

Explanation:

Cell membranes are composed of a phospholipid bilayer. DNA molecules are made of nucleotides. Fats are triglycerides. Wax is an ester of a fatty acid and a long - chain alcohol.

Answer:

cell membranes