Where does the matter found in the body of an animal come from

Babies with very low or very high weight are less likely to survive .

Nitrofurantoin used during the fifth week of pregnancy places the neonate at risk for which condition?

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.