6.05 Human Body systems

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Across
  1. 1. a part of an organism that is typically self-contained and has a specific vital function, such as the heart or liver in humans.
  2. 5. System the set of organs that allows a person to breathe and exchange oxygen and carbon dioxide throughout the body.
  3. 7. Directs the cells activities
  4. 9. an individual animal, plant, or single-celled life form.
  5. 10. A neutral group of two or more atoms held together by covalent bonds
Down
  1. 2. System a system of the body that in vertebrates includes the brain, spinal cord, nerves
  2. 3. the basic particle from which all elements are made
  3. 4. System The system in the body by which blood and lymph are circulated.
  4. 6. an ensemble of similar cells from the same origin that together carry out a specific function.
  5. 8. System a host defense system comprising many biological structures and processes within an organism that protects against disease.