Across
- 1. basic unit of structure and function in the nervous system. It conducts impulses throughtout the nervous system
- 3. Set of three nitrogen bases that represents an amino acid
- 4. many projections that line the small intestine thay are used to absorb digested food
- 5. a muscular tube that connects the mouth to the stomach
- 7. atom or group of atoms that gains or lose electrons
- 10. part of the brain that connects the endocrine and nervous system
- 11. Only vien in your body that carries oxygen rich blood
- 12. organ of the urinary system that removes wastes
- 14. An automatic response that involves no consious control
- 15. When a organism regulates its internal environment in order to survive
- 17. largest blood vessel in the body
- 18. When water diffuses across a selective permeable membrane
Down
- 1. A subunit composed of a simple sugar, a phosphate group, and a nitrogen base
- 2. This causes disease.It is not living and has an inner core of nuclucletic acid surrounded by capsid
- 6. A living cell that a virus replicates in
- 8. This is a single cytoplasmic extention of a neuron
- 9. Ball of capillaries in the exceretory system; sorts waste through blood
- 10. chemical made in one organ and transported to another organ that causes physiological change
- 13. random movement of particles from an area of high concentration to a area of low concentration
- 16. The space between the dendrite and another neuron's axon