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date: EXTRA CREDIT for excretory system Print out this page of questions. Go to this site: http://videos.howstuffworks.com/hsw/20550-human-body-systems-the-excretory-system-video.htm and watch the 17 min. video on excretory system. It may be preceeded with a short commercial. Answer the following questions and turn in to class. 1. What are the 4 organs of the excretory system? 2. Why is the excretory system important to the human body? 3. How do kidneys clean the blood? 4. How is perspiration important to regulating body temperature? 5. What are the names of the 2 main layers of the skin? 6. What is urine? 7. What job does the bladder perform? 8. What does the term homeostasis mean? 9. What role do the lungs have in the excretory system? 10. How big are the kidneys and where are they located? |