Homeostasis and Cells

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Across
  1. 2. Contain chloroplast
  2. 3. It releases pollen grains, some of the world's most specialized cells. Specialized ________ cells.
  3. 4. Relatively constant internal physical and chemical conditions that organisms maintain
  4. 7. ___________ and gap junctions are essential to the heart to pump blood effectively
  5. 8. Organisms that dominate life on earth
  6. 9. Unicellular organisms include both _________ and eukaryotes
  7. 12. Basic units of all organisms
  8. 13. Cells communicate by _______
  9. 15. Place in the cell in which most of the receptors are:
Down
  1. 1. Small group of cardiac muscle fibers that maintains the heart’s pumping rhythm by setting the rate at which the heart contracts; the sinoatrial node
  2. 3. Type of eukaryote that is a single cell
  3. 5. All cells are __________
  4. 6. A group of similar cells that performs a particular function
  5. 10. A group of organs that work together to perform an specific function
  6. 11. These cells are filled with mitochondria, which produce a steady supply of the ATP that powers the cilia on their upper surface to keep your lungs clean. Specialized _________ Cells
  7. 14. Group of tissues that work together to perform closely related functions