Which Theory of Aging Projects That an Individual's Life Span

question 9

Multiple Choice

Which theory of aging projects that an individual's life span is programmed within the body cells and predetermines the speed with which the person ages and eventually dies?

• A)collagen theory
• B)immunity theory
• C)programmed aging
• D)stress theory

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Definitions:

Net Primary Productivity

The rate at which plants and other photosynthetic organisms produce organic compounds in an ecosystem minus the rate at which they use some of these compounds through respiration.

Plant Respiration

The process by which plants take in oxygen and release carbon dioxide, involved in energy production at the cellular level.

Homoeothermic

Refers to organisms that maintain a constant internal body temperature regardless of external environmental conditions.

DDT

Dichloro-Diphenyl-Trichloroethane, a synthetic organic compound once widely used as an insecticide, now known to be an environmental pollutant.