The Beginning of the Menstrual Function, Which Occurs During Puberty

question 51

Short Answer

The beginning of the menstrual function, which occurs during puberty, is known as ____________________.​

---

Definitions:

Class

A taxonomic category made up of related orders.

Taxonomy

The science of classifying organisms into categories such as species, genera, families, etc., based on shared characteristics and genetic relationships.

Systematics

The scientific study of the diversity of organisms and their evolutionary relationships. Taxonomy is an aspect of systematics. See taxonomy.

Binomial

A mathematical expression consisting of two terms joined by a plus or minus sign, or a system of nomenclature involving two names to classify species.