C.segrigation
definition:the action or state of setting someone or something apart from other
people or things or being set apart
To be able to answer a question that involves a graph, I would need to see the graph :)
Answer:
The sex ratio is the ratio of males to females in a population.
Explanation:
It is generally divided into four subdivisions:
primary sex ratio — ratio at fertilization
secondary sex ratio — ratio at birth
tertiary sex ratio — ratio in sexually mature organisms
quaternary sex ratio — ratio in post-reproductive organisms