Answer:
B.Lipid
Because With few exceptions, cellular membranes — including plasma membranes and internal membranes — are made of glycerophospholipids, molecules composed of glycerol, a phosphate group, and two fatty acid chains. Glycerol
Lipids , lipids , and lipids x'D
Homozygous<span>. An organism that has two identical alleles for a trait.</span>
What was the investigation? But from my best guess I'm assuming it's the second option. This may be incorrect.
