Bells and Body Systems

2. removal of waste products from the blood using a machine that functions as a kidney
3. foot-like projections on an amoeba
5. waste removal
9. supplies blood with oxygen from outside air and removes carbon dioxide from your blood
11. organelles that convert sunlight into food
12. thin structure that encloses all the contents of plant and animal cells
14. outer covering of a cell that provides strength ans support
16. protects body's internal environment from the external environment
21. hair-like extensions that protrude from the surface of some unicellular organisms and from some cells in multicellular organisms
22. group of organs that work together to perform a certain task
23. contents of the cell inside the cell membrane excluding the nucleus

1. provides a mobile support frame for the body
2. small branches of a neuron that receive information from neighbouring cells
4. transports system reaching every cell in the body; delivers nutrients absorbed by the digestive system and oxygen absorbed by the respiratory system to every cell
5. removes chemical and other gaseous waste from the body
6. division of the nervous system composed of the brain and spinal cord
7. blood cells specialized to fight infection
8. made of just one cell
10. the basic unit of life
13. coordinates and controls all organs and organ systems
15. created by the body to carry out chemical digestion
17. made of more than one cell
18. group of similar cells working together to perform a specific function
19. small, pliable cells that have no nucleus and are specialized for carrying oxygen to all cells of the body
20. allows movement
22. group of tissues that work together to perform a specific function