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"Science Ch.5"
Cells and body system Lesson 1, 2 and 3
Question | Answer |
---|---|
The basic unit of structure and function of all living things | Cell |
The part of a cell that directs all of the cells | Nucleus |
A group of tissues that work together to preform a certain function | Organ |
The organ system that turns your food into nutrients that your bodies cells need | Digestive System |
Body mass is made up of this | Muscle |
Cells build on each other to form these. | Cells- Tissue- Organ- Organ system |
organelle that directs a cell's activities | Nucleus |
Which is found only in plant cells | Chloroplast |
Heart, arteries, veins, Capillaries | Circulatory System |
A group of organs and tissue that exchange oxygen and carbon dioxide between your body and the environment | Respiratory System |
Includes bones, cartilage and ligaments | Skeletal System |
Includes muscles and tendons | Muscular System |
enables you to sense your environment and react to it | Nervous System |
organisms made up of more than one cell | multicellular |