HOMEOSTASIS

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Across
  1. 6. is any self-regulating process by which an organism tends to maintain stability while adjusting to conditions that are best for its survival.
  2. 8. system is a biological system in animals and plants that consists of specific organs and structures used for gas exchange.
  3. 9. system is a complex network of nerves and cells that carry messages to and from the brain and spinal cord to various parts of the body.
Down
  1. 1. are a self-contained part of an organism that performs a specific vital function, such as the heart or liver in humans.
  2. 2. pumping blood through the blood vessels by repeated, rhythmic contractions.
  3. 3. are a pair of spongy, air-filled organs located on either side of the chest
  4. 4. gland is a small organ in the front of the neck that wraps around the windpipe.
  5. 5. system is an organ system consisting of skeletal, smooth and cardiac muscles.
  6. 7. an organ of soft nervous tissue contained in the skull of vertebrates, functioning as the coordinating center of sensation and intellectual and nervous activity.