The answer is order.
A number of similar families make up a(n) *order*.
Answer:
"Lipids are an essential component of the cell membrane. The structure is typically made of a glycerol backbone, 2 fatty acid tails (hydrophobic), and a phosphate group (hydrophilic)."
A compound consists of two or more elements.
Answer:
C, distance
Explanation:
Distance and mass are two major factors that affect the strength of the gravitational force.
