Definitions

A group of cells with similar structures, working together to perform a shared function.

A structure made up of a group of tissues, working together to perform specific functions.

Group of organs with related function, working together to perform body functions.

10 major systems(animals):

• circulatory
• nervous
• respiratory
• digestive
• skeletal
• muscular
• reproductory
• excretory
• immune

2 major systems(plants):

• Shoot - leaves, buds, stems, flowers, fruits
• Root - parts below the ground

A group of organ systems that work together to complete the characteristics of life.