Answer:
Psychologists are traditionally concerned with the study of behavior. We believe that many aspects of population, from fertility regulation to migration, may be viewed as examples of human behavior occuring within particular socioeconomic and environmental contexts and thus appropriate for psychological research.
Animals expel energy to keep warm
Before modern medicine, in which treatment's with certain ethical therapies and medication, most patients with mental illness where placed in institutions no matter how severe, and were forced to go through unethical therapies such as electroshock or lobotomies.
Explanation:
The respiratory system allows for intake of oxygen, food 4 cells 2 absorb through the circulatory system.
once food is digested, it runs through the circulatory system as glycogen, (sugars). cells can readily absorb glycogen bcause of the fact it has smaller molecules 4 cells to absorb, to give them energy to function normally. respiratory system and the pulmonary aorta, distributes through the heart, absorbs food 4 heart, and distribute glycogen 2 rest of body, 4 cells 2 absorb 4 energy... hope this is helpful..