Classification

question 82

Multiple Choice

Classification.Answer the following questions in reference to the levels of organization of life.Choose only the most correct answer.
-A collection of cells performing a common function.

• A)population
• B)living cells
• C)molecules
• D)biosphere
• E)ecosystem
• F)organs
• G)tissues
• H)community

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Definitions:

Sympathetic

Relating to the sympathetic nervous system, which is part of the autonomic nervous system responsible for the body's "fight or flight" response.

Fight-or-Flight

A physiological reaction to perceived harmful events, attacks, or threats to survival, preparing the body to either confront or flee from the situation.

Allostatic

Relating to or denoting the adaptive processes that maintain homeostasis through the production of mediators such as adrenaline.

Homeostasis

The regulation of an organism's internal environment to maintain stable, constant conditions for life processes.