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Definitions of unit 2
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- 1. relation It is most important organ in our body
- 2. Brain The mass of nerve tissue in the head
- 3. iris Round colorued part of your eye
- 4. muscle Tissue composed of long cells to contract
- 5. Special cell that is capable of sending commandsto muscle
Neuron
- 6. Skeletal system Bones of humans or animals
- 7. Skull The bony framwork of the head
- 8. Smell Give off or have on odor
- 9. Taste buds Sense organs that detect taste
- 10. Senses 1-Sight 2-Earing 3-Smell 4-Taste 5-Touch