| A | B |
|---|
| cell | is the basic unit of structure and function of life |
| energy | cells release (this term) from food, making chemicals the cells need, and getting rid of wastes |
| tissue | is a group of cells working together to do a specific job; they work together to form an organ |
| system | organs that work together to perform a function form this term |
| organ | is a structure made up of two or more tissues that work together to carry out a specific job in a system |
| muscular tissue | made of cells that contract and relax to allow movement |
| nervous tissue | transmits messages through the body (senses) |
| connective tissue | fills in spaces and conects other tissues together; supports, protects, nourishes, and insulates organs |
| epithelial tissue | covers the outside of the body and lines inner surfaces of the body |
| skeletal and muscular system | organ systems tha work together to help body movement |
| digestive and excretory system | systems that work together to take in materials you body needs and get rid of wastes. |
| respiratory and circulatory system | systems to take in oxygen and transport it to cells |
| nervous and endocrine system | systems that transmit information throughout your body |
