What is the number of characteristics that define a living thing

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.

Draw the structure of dna nucleotide with adenine as nitrogenous base

What is the name of the type of cell division that occurs in the prokaryotic cell cycle