1. Which cells fight disease and pathogens in the body?* Answer: A. White blood cells 2. What holds joints together?* Answer: C. Ligaments 3. What send and receive electrical impulses to control movement?* Answer: B. Nerves 4. The diaphragm drives which system?* Answer: D. Respiratory system 5. What filter the wastes from the blood and direct them to the bladder?* Answer: A. Kidneys 6. Arterial blood carries what to the tissues and what back from the tissues?* Answer: B. Oxygen to the tissues and carbon dioxide back from the tissues 7. What is the driving force behind the circulatory system?* Answer: C. Heart 8. What secrete disease-fighting serums when you are sick?* Answer: D. Lymphatic system 9. What swells when you get strep throat?* Answer: A. Tonsils 10. Bones are hollow and on the inside, they are filled with what?* Answer: B. Marrow 11. What is the primary component of muscle?* Answer: C. Protein 12. What are the tissues that cushion joints called?* Answer: D. Cartilage 13. What breaks down food to allow the body to absorb nutrients?* Answer: A. Digestive system 14. The reproductive system of mammals is designed to do what?* Answer: B. Reproduce 15. The skin, hair, and hooves are all part of what system?* Answer: C. Integumentary system 16. What are the tubules that connect the kidneys to the bladder called?* Answer: A. Ureters 17. Another name for the excretory system is what?* Answer: D. Urinary system 18. In many cultures, what is the most prized part of the animal body?* Answer: A. Meat 19. In the US, we most often eat what part of the animal?* Answer: B. Muscle 20. What is getting the desired product from the animal such as milk, wool, etc. called?* Answer: D. By-products