Aresearcher finds a strong positive correlation between ratings of life stress and symptoms of depression. therefore, the researcher may be confident that:

Answer;

-Life stress and depression are related

Explanation;

-Stress is good for you. It keeps you alert, motivated and primed to respond to danger. However; too much stress, or chronic stress may lead to major depression in susceptible people.

-Stress, whether chronic or acute, such as losing a job or the death of a loved one; can lead to major depression in susceptible people. Both types of stress lead to over activity of the body's stress-response mechanism.

-Sustained or chronic stress, in particular, leads to elevated hormones such as cortisol, the stress hormone, and reduced serotonin and other neurotransmitters in the brain, including dopamine, which has been linked to depression.

thermophiles, notice the prefix thermo.

answer: b

coz red blood cells marrow and circulates the body for 120 days.