Reference no: EM133477278

Question 1: Explain why a disease that damages connective tissue is likely to affect most of the body's organs.

Question 2: Can cells differ in their response to a hormone if they have the same receptor for that hormone? Explain.

Question 3: Is it accurate to define homeostasis as a constant internal environment? Explain.

Question 4: What is the function of the filtration step in excretory systems?

Question 5: Many medications make the epithelium of the collecting ducts of the kidneys less permeable to water. How would taking such a drug affect kidney output in humans?

Question 6: An animal requires 20 amino acids to make proteins. Why aren't all 20 amino acids essential to animal diets?

Question 7: Distinguish the overall structure of a gastrovascular cavity from that of an alimentary canal. Explain what openings are present, and what they do.

Question 8: If you mixed gastric juice with crushed food in a test tube, what would happen to the food? What molecules would be broken down? What would not?

Question 9: What are two advantages of a longer alimentary canal for processing plant material that is difficult to digest?

Question 10: Explain how people can become obese even if their dietary fat intake is low compared with their carbohydrate intake.