Heritability describes the:
a. genetic composition for a trait in a particular population.
b. phenotypic variation of a trait in a particular population.
c. variation in a phenotype caused by the environment.
d. proportion of genetic contribution to a trait in a particular population.

b. phenotypic variation of a trait in a particular population.

Explanation:

Heritability describes a statistical measure that indicates variation in phenotypes (traits present) in a particular population.

An estimate of heritability of a trait is specific to a studied population in a determined environment, and it could change over time as circumstances often change. Heritability estimates range in a scale from zero to one.

Factors leading to this will be both ambient, and genetical. The case below exemplifies envirnoment impact.See below for a clearer view:

answer:

well the blood rushes to the vessles in your pp (lol) it also happen because u see somthin erotic or pleasing somtimes it happenes by accdent or by purberty or an dream (know an an wet dream)

explanation:

answer:

its probable on the floor if it fell off.