Emil Kraepelin is best known for his contributions to the study of schizophrenia. He introduced two new diagnostic categories of disordered behavior - dementia praecox and manic-depressive insanity - based on symptom differentiation, , and .

An organ system consists of a group of organs that performs specific functions necessary for the survival of an organism. humans have eleven different organ systems: integumentary, skeletal, muscular, nervous, endocrine, circulatory, lymphatic, respiratory, digestive, urinary, and reproductive. discuss the function of neurons, the brain and the spinal cord within the human nervous system while explaining the interrelationship of each organ.

Apart of an ecosystem that can restrict the growth of a population is referred to as

How does this experiment explain why it is often milder in areas such as coastal maryland while areas such as kansas or iowa have more extremes in temperature