1. Subject: Respiratory/Excretory System
Twenty Questions
Subject: Respiratory/Excretory System

2. Twenty Questions 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

3. 1. The process of removing wastes from the body
excretion

4. 2. The major organs of the excretory system
kidneys

5. 3. A chemical that comes from the breakdown of proteins
urea

6. 4. A watery fluid that contains urea and other wastes
urine

7. 5. Kidneys filter the ___ removing wastes
blood

8. 6. Kidneys help maintain homeostasis by regulating the amount of ________ in the body
water

9. 7. The function of this organ is to break down wastes
liver

10. 8. These tubes carry urine from the kidneys to the bladder
ureters

11. 9. A tube that takes urine out of the body.
urethra

12. 10. Tiny filters in the kidneys that remove wastes from the blood
nephrons

13. 11. Muscular organ that holds urine
bladder

14. 12. You perspire out of this excretory organ
skin

15. 13. This excretory organ expels carbon dioxide and water vapor
lungs

16. 14. The function of the excetory system is to
Remove wastes from the body

17. 15. When you are not drinking a lot and it is a hot day, you will produce (more /less) urine