Can anyone please help and explain

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.

Plz quick a natural resource that is replaceable through a cycle in nature or sustainable practice is called a? the subject is science

Fredrick griffith made a scientific discovery in 1928