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What feature does a roof ladder have that a single ladder does not have?

The sympathetic nervous system is responsible for the relaxation response.

What type of stress is more damaging to the physical and emotional body?

The symptoms of post-traumatic stress disorder include:

Stress increases serum blood sugar levels, which could lead to Type II diabetes if one experiences consistent fight or flight episodes of stress. 

Which level of the brain do involuntary functions such as heartbeat, respiration, and vasomotor activity occur?

An example of someone having exacerbated (worsened) asthma symptoms as a result of emotional stress is referred to as:

The following is true about stress:

MacConkey media for screening suspected cases of hemorrhagic E coli O157:H7 must contain:

Which cells are involved in immediate hypersensitivity reactions?