When the cell engulfs large fragments of matter, it is called . endocytosis. exocytosis. pinocytosis. phagocytosis

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.

20 the compound al(nh3)2 has atoms of nitrogen.

Which macromolecule catalyzes chemical reactions this be considered enzyme chemical reactions thus he considering enzymes