The Average Number of Children Per Family in the U

question 12

Multiple Choice

The average number of children per family in the U.S. has been:

• A) increasing since 1800.
• B) dropping most recently.
• C) very stable since 1800.
• D) constant over the last four generations.

---

Definitions:

Mitosis

The process of cell division in eukaryotic cells where one cell divides into two genetically identical daughter cells.

Epidermal Cells

Cells that make up the epidermis, the outermost layer of the skin, playing a crucial role in protection and barrier functions.

Keratinization

The process by which cells from beneath the skin's surface move up, lose their nucleus, and become filled with keratin protein, leading to the formation of the tough, protective outer layer of the skin and hair.

Protein

Essential biomolecules comprised of one or more chains of amino acids, playing a crucial role in cell structure, function, and regulation.