Biology

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Across
  1. 2. system the system that pumps blood with nutrients
  2. 4. the ability to use feedback mechanisms to regulate the internal environment of the body and keep it constant
  3. 7. rate increases the amount of gas exchange between the human body and the environment
  4. 8. membrane semi permeable barrier
  5. 9. a functional unit of DNA that codes for proteins
  6. 10. releases a hormone to allow glucose into cells
  7. 13. differentiation a process that creates unique cells from stem cells
  8. 14. adjusts the body temperature by shivering or sweating
Down
  1. 1. rate increases during exercise allowing nutrients to pump throughout the body more
  2. 3. system exchanges gasses between the environment and the human body
  3. 5. produces ATP for the cell
  4. 6. a hormone that binds to a receptor opening a protein channel
  5. 11. cells undifferentiated cells that can be used to create new cells
  6. 12. a small sugar that can be used to make energy for the cell