Bells and Body Systems

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Across
  1. 2. removal of waste products from the blood using a machine that functions as a kidney
  2. 3. foot-like projections on an amoeba
  3. 5. waste removal
  4. 9. supplies blood with oxygen from outside air and removes carbon dioxide from your blood
  5. 11. organelles that convert sunlight into food
  6. 12. thin structure that encloses all the contents of plant and animal cells
  7. 14. outer covering of a cell that provides strength ans support
  8. 16. protects body's internal environment from the external environment
  9. 21. hair-like extensions that protrude from the surface of some unicellular organisms and from some cells in multicellular organisms
  10. 22. group of organs that work together to perform a certain task
  11. 23. contents of the cell inside the cell membrane excluding the nucleus
Down
  1. 1. provides a mobile support frame for the body
  2. 2. small branches of a neuron that receive information from neighbouring cells
  3. 4. transports system reaching every cell in the body; delivers nutrients absorbed by the digestive system and oxygen absorbed by the respiratory system to every cell
  4. 5. removes chemical and other gaseous waste from the body
  5. 6. division of the nervous system composed of the brain and spinal cord
  6. 7. blood cells specialized to fight infection
  7. 8. made of just one cell
  8. 10. the basic unit of life
  9. 13. coordinates and controls all organs and organ systems
  10. 15. created by the body to carry out chemical digestion
  11. 17. made of more than one cell
  12. 18. group of similar cells working together to perform a specific function
  13. 19. small, pliable cells that have no nucleus and are specialized for carrying oxygen to all cells of the body
  14. 20. allows movement
  15. 22. group of tissues that work together to perform a specific function