Biology Cross Word

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