Studies of the Immune System in Animals Have Found That

question 149

Multiple Choice

Studies of the immune system in animals have found that stressors such as crowding

• A) can lead to increased levels of immune system activity
• B) can activate the release of aggressive pheromones
• C) can increase levels of serotonin and dopamine
• D) can reduce various aspects of immune system activity

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Definitions:

Use Scissors

To employ a cutting instrument with two blades joined together, used for cutting various materials.

Months

Units of time roughly based on the period of the lunar cycle, used in the Gregorian calendar to divide the year into twelve periods.

Watches

Timepieces worn on the wrist, designed to keep and indicate time.

Falling Object

An item that drops under the influence of gravity, posing potential risks or dangers to those below.