What is a cell?
basic building block of life
what is a tissue?
a group of similar cells that work together to perform a specific function
name 1 example of a tissue:
epidermis (skin), muscle, fat tissue, nervous
what is an organ?
a structure made of different tissues working together to perform a specific function
name 1 example of an organ:
heart, lungs , brain, stomach, pancreas, intestines, liver
what is an organ system?
a group of organs that work together to perform a specific function or set of functions in the body
name 1 example of an organ system: