By Age 51, Most Women Enter Menopause

question 109

Multiple Choice

By age 51, most women enter menopause. This is an example of how a biological process can exert a ________ influence on development.

• A) normative history-graded
• B) nonnormative multidirectional
• C) normative age-graded
• D) nonnormative age-graded

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Definitions:

Tubular Secretion

Movement of certain molecules from blood into the distal convoluted tubule of a nephron so that they are added to urine.

Distal Convoluted Tubule

Final portion of a nephron that joins with a collecting duct; associated with tubular secretion.

Active Transport

The movement of molecules across a cell membrane from an area of lower concentration to one of higher concentration, requiring energy.

Excretory System

A biological system that removes excess, unnecessary materials from an organism, allowing it to maintain homeostasis and prevent damage to its body.