Review Crossword for Human Body Lessons 1-4

4. the smallest component of a living thing
8. This person discovered “animalcules”-single celled organisms in muddy puddle water
9. Heart, lungs and blood vessels make this system
11. _____ and Muscular are the 2 systems that allow us to move
13. the knob that should be the only one used on Medium and High power
16. The reason we have villi is to increase the _____ so we can easily get nutrients into the bloodstream
17. found in yogurt and is a tiny, simple single-celled organism
19. One of the things your skin and cheek cells have in common
20. Little hair like structures in your intestines
21. _____ from the liver mechanically digests fat into small droplets

1. chemical scissors that break down starches
2. Breaking down food into smaller pieces without chemicals is called _____ Digestion
3. This is the person who discovered cells by looking at cork
5. barrier to outside environment, outer surface of the cell that allows materials in or out of cell.
6. Different parts working together for a single cause
7. One of the characteristics of living thing
8. Place where water, vitamins and minerals are absorbed here and undigested food/wastes are pushed out of the body
10. A mass of different tissues that work together
12. The job of the villi is to absorb digested _____
14. Similar specialized cells working together with specific function
15. all chemical reactions in an organism
16. This supports the slide
18. Name of protein digesting enzyme that works best when in acid