Non living things:- the things that have no life activities such as no movement and no locomotion,no respiration, no breathing,no digestion ,no circulation,no reproduction,no any activity eg:- stone, soil iron etc..
Living things:-the things that have life activities such as cellular activities, movement, locomotion, respiration,etc.Eg:-animals, plants, man etc.
Cell :-cell is the basic units of life
Cell present in every living things
Tissue:- when many cell join together to form tissue
Organ :- many tissue join together to form organ
Organ systems:-many organ join together to form a organ systems eg:-digestive system ,respiratory system, circulatory system, excretory system nural system ..