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Across
  1. 2. how cells move things across the cell membrane; requires energy
  2. 4. system that produces eggs in the female and sperm in the male and allows sexual reproduction to take place; this system includes the ovaries or testes
  3. 9. the organelle that changes sugar into energy your cell can use
  4. 12. system that moves oxygen from the outside environment into the body; organs in this system include your lungs, trachea, etc.
  5. 14. structure made of different kinds of tissue that performs a specific job
  6. 15. balanced conditions inside an organism
  7. 16. system that breaks down food into molecules the body can use and eliminates waste; this system includes your esophagus, stomach, and small intestine
  8. 17. a group of organs that work together to do a specific job
  9. 19. membrane the organelle that controls what goes into and out of cells
Down
  1. 1. system that carries needed substances (like oxygen and sugar) to cells and carries waste products away from cells; organs in this system are the heart, veins, and arteries
  2. 3. systems are organized into these single living things
  3. 5. how water crosses a cell membrane; requires no energy
  4. 6. system that collects waste made by cells and removes the wastes from the body; organs in this system include kidneys and ureters
  5. 7. system that provides shape and support, enables you to move, protects your organs, produces blood cells, stores minerals and other materials until your body needs them; this system includes bones, like your skull or vertebrae
  6. 8. system that allows your body to move; this system includes your muscles (bicep, tricep, etc). and types of muscle (skeletal, smooth, cardiac)
  7. 10. system that produces chemicals that control many of the body's activities and regulates long term changes like growth and development; this system includes your thyroid gland and pancreas
  8. 11. system that receives information about what is happening inside and outside your body, directs the way your body responds to this information, and helps your body maintain homeostasis; this system includes your brain and spinal cord
  9. 13. a group of similar cells that perform the same function
  10. 18. the organelle that directs the cell's activities