Mach's Most Significant Contribution to 20^th Century Physics Pertained to

question 17

Multiple Choice

Mach's most significant contribution to 20^th century physics pertained to

• A) quantum theory.
• B) X-rays.
• C) the Uncertainty Principle.
• D) the theory of relativity.
• E) interchangeability of matter and energy.

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Definitions:

Homeostatic Mechanisms

Biological systems that maintain stable internal conditions (like temperature and pH) despite changes in the external environment.

Hypothalamus

A region of the brain that controls an immense number of bodily functions, including hunger, thirst, body temperature, and the release of many hormones.

Prolactin

is a hormone produced by the pituitary gland that stimulates milk production after childbirth and affects many other functions including reproductive, metabolic, and immune regulation.