Question

question 9 of 10
what happens to cause a female to begin puberty?
a. hormones are released by the endocrine system.
b. an egg is fertilized for the first time.
c. the vas deferens attaches to the uterus.
d. eggs are produced in the ovaries.

Explanation:

Puberty in females is initiated by the release of hormones from the endocrine system. The hypothalamus - pituitary - gonad axis starts to function more actively, releasing hormones like gonadotropin - releasing hormone, luteinizing hormone, and follicle - stimulating hormone, which act on the ovaries. Fertilization of an egg is related to reproduction, not the start of puberty. The vas deferens is a male reproductive structure and not relevant here. Egg production in ovaries occurs throughout a female's reproductive life and is not the trigger for puberty.

Answer:

A. Hormones are released by the endocrine system.