Stress May Weaken the Immune System in Part by Increasing

question 73

Multiple Choice

Stress may weaken the immune system in part by increasing

• A)the number of lymphocytes in the bloodstream.
• B)blood pressure.
• C)unhealthy behaviors.
• D)physical exertion and rest.

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Definitions:

Organisms

Living entities that can carry out life processes independently or in a colony, such as animals, plants, and bacteria.

Phylogeny

The evolutionary history and relationship of an organism or group of organisms.

Evolutionary Relationships

The connections among species or groups of organisms that arise from a common ancestor, elucidated through the study of physical characteristics, genetics, and comparative anatomy.

Classifying Organisms

The scientific practice of organizing and categorizing living organisms into groups based on shared characteristics.