When Blood Calcium Levels Fall, Which of the Following Does

question 79

Multiple Choice

When blood calcium levels fall, which of the following does NOT occur?

• A) PTH is produced and activates vitamin D.
• B) Vitamin D stimulates the kidney to reabsorb calcium from the blood.
• C) PTH and vitamin D stimulate osteoblasts to break down bone.
• D) Vitamin D increases the absorption of calcium from the intestines.

---

Definitions:

Culture

The shared beliefs, customs, practices, and social behavior of a particular nation or people.

Evolutionary Psychology

A theoretical approach in psychology that attempts to explain useful mental and psychological traits—such as memory, perception, or language—as adaptations, i.e., as the functional products of natural selection.

Genetic Differences

are variations in the DNA sequences among individuals, which contribute to the diversity in physical traits and susceptibilities to certain diseases.

Environmental Influences

External factors, such as climate, geography, pollutants, and social conditions, that can affect individuals' behavior, development, and health.