Animal Systems

1234567891011121314
Across
  1. 2. The system that allows the body to move, including the movement of food through the intestines and blood through the arteries
  2. 5. The system that includes white blood cells, lymph nodes and protects us from infection
  3. 8. a group of cells that work together for a common function
  4. 9. The system that controls the other systems using electrical signals from the brain and spinal cord
  5. 12. The system that creates eggs and sperm for pregnancy and childbirth
  6. 13. The system that removes waste such as sweat and urine
  7. 14. a group of tissues that work together for a common function
Down
  1. 1. The system that causes hormonal changes seen during puberty and pregnancy
  2. 3. The system that rigidly protects our soft internal organs and produces red blood cells
  3. 4. The process of staying within normal ranges even when environmental conditions are constantly changing
  4. 6. The system that transports nutrients around the body via blood
  5. 7. the smallest functional unit of life
  6. 10. The system that defines the outer layer of the body and is the first line of defense
  7. 11. The system that breaks down food into useable nutrients