The Human Body

1. a collection of the same kinds of cells grouped together
3. a storage bag that holds liquid waste
7. a nutrient essential for brain development in the first few years of life
10. the body system responsible for absorbing nutrients and getting rid os solid waste
13. this makes up most of the human body and blood
15. the smallest unit of life
16. this organ acts like a filter cleaning the blood in the body
17. an essential nutrient that helps the body make new cells
18. a watery substance that kills bacteria in food before you swallow
19. a 10 inch long tube leading from the throat to the hundreds
22. an organ that expands to hold food and contains gastric juices to help break down food
24. nourishing substances necessary for growth and life

2. these tubes connect from the kidneys to the bladder carrying liquid waste
4. intestine the organ where solid waste ends up
5. poisons that leave the body
6. Anton van Leeuwenhoek
8. threads found in the small intestine that absorb nutrients from food
9. a job or role
11. the largest body organ
12. the body needs a ______ of nutrients to stay healthy
14. to soak up, villi do this to nutrients
20. parts that work together to perform a job
21. work together to make up your body's systems
23. this nutrient is found mostly in fruits and vegetables and gives the body energy