cell

cell is in are in are body. they basic unit of structure and function of a living thing they also help us in are body. if we did not have cells we would not be living . ex are blood cell  red blood cell,

Tissue

Tissues are made of a group of similar cells. they all work together in are body.it also  cellular organizational level.ex are  bone, cartilage, and blood.

Organs

made up  of two or more tissues. do a specific job. they work together . ex are eyes,heart, lungs

Organ Systems

Organisms

Sum of all cells, tissues, organs and organ systems makes an organism.in every living thing. work together.

Population

A group of the same type of organisms all living together in the same place. same ,live

They work together by helping us live. they help us  keep things together. if they did not work together we would not live right