Answer:
Phospholipids make up biological membranes None of the choices are correct.
Step-by-step explanation:
Phospholipids make up biological membranes but not having the following hydrophobic tails that face outward and are exposed to water nor having hydrophobic heads that faces the center of the membrane and are shielded from water nor remaining fluid because they are tightly packed against one another often have "kinks" in their tails caused by the presence of a single rather than a double bond between carbons