6.3.10 Respiratory System

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Across
  1. 3. a small blood vessel that transports nutrients and gases between the blood and tissues in an animal
  2. 4. the tube in the body through which air moves as it travels to and from the lungs; the windpipe
  3. 8. the system of the body that brings oxygen into the body and releases carbon dioxide
  4. 9. the process of taking in oxygen and releasing carbon dioxide from the body; also the process in which cells use oxygen to get energy from food
  5. 10. organs that allow animals to take in oxygen from water
  6. 11. tissue that brings oxygen and nutrients to the cells of the body and removes wastes from the cells of the body
  7. 13. a process that repeats
  8. 14. the ability to do work or cause change; can be stored in chemicals found in food and released to the organism to do work
  9. 15. the observable traits of an organism passed on from parent to offspring
  10. 16. the body system that delivers blood to different parts of a body; consists of the heart, blood, and blood vessel
  11. 19. a warm-blooded animal with hair that produces milk for its offspring
  12. 20. a kind of single-celled organism in kingdom Protista able to move by itself
  13. 23. an organ of the muscular system; can be either voluntary, such as a biceps, or involuntary,
  14. 26. a blood cell that carries oxygen to other cells in the body
  15. 28. any part of the nervous system that works without a person's having to think about it
  16. 29. the structure of a living thing
  17. 30. the substances present before a chemical reaction occurs
  18. 32. a waste product made by cells of the body; a gas in the air made of carbon and oxygen atoms
Down
  1. 1. describes an object with two halves that are mirror images of each other
  2. 2. layers of gas that surround a planet
  3. 5. the system of the body responsible for storing and getting rid of waste products, such as urine
  4. 6. a group of related objects that work together to perform a function
  5. 7. to take in air and let out air
  6. 11. tubes in the body through which blood flows
  7. 12. a group of parts that work together to function or perform a task
  8. 16. a feature of an organism; something you can observe about an organism
  9. 17. to act on one another
  10. 18. a measure of the amount of energy in food
  11. 20. an animal that spends part of its life in the water and part on land; an animal that lives on land as an adult but lays its eggs in water
  12. 21. to move around
  13. 22. an element that makes up about 21% of Earth's atmosphere; a gas in Earth's atmosphere and in water that living organisms breathe
  14. 24. The kind of action or activity specific to a thing or person.
  15. 25. organs of the respiratory system that bring oxygen-rich air into the body and send oxygen-poor air out of the body
  16. 27. a group of tissues that performs a complex function in a body
  17. 31. to take in matter or energy