Biology CrossWord

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Across
  1. 5. your body from infection
  2. 6. blood cell that is made in the bone marrow and found in the blood
  3. 9. long, thin cells with fine branches at the ends capable of conducting electrical impulses
  4. 10. organ system made up of the heart, the blood and blood vessels. This system transports oxygen and nutrients and carries away wastes
  5. 11. thin-walled blood vessels that allow the exchange of nutrients and wastes between blood and body tissues
  6. 13. Organ system that is provides oxygen fro the body and allows CO2 to leave the body
Down
  1. 1. An undifferentiated cell that can divide to form specialized cells
  2. 2. various types of cells and fibres held together y a liquid, solid ora gel, known as a matrix
  3. 3. The organ system that takes in and breaks up food and then excretes the waste
  4. 4. Clusters of tin air sacs in the lungs
  5. 7. Tiny cells that help in blood clotting
  6. 8. Thin sheets if tightly packed cells covering surfaces and lining internal organ
  7. 12. blood cell part of your immune system that