2. TRIVIA Click for Question

3. List the order of complexity starting with a cell? Cell, Tissue Organ System Organism Click for: Answer and next Question

4. What is homeostasis? Maintaining a Stable internal environment Click for: Answer and next Question

5. What is positive feedback? One event, causes another event, which causes more Click for: Answer and next Question

6. What is negative feedback? One event, causes a decrease which causes an increase Click for: Answer and next Question

7. What is the function of the skin? Protect from Pathogens, Temp regulation Prevent water loss Click for: Answer and next Question

8. Which organisms have a four chambered heart? Mammals Birds Some reptiles Click for: Answer and next Question

9. How does the heart of the fish and amphibians compare? Fish- 1 atrium, 1 ventricle Amp- 2 atrium 1 ventricle Click for: Answer and next Question

10. What is an open circulatory system and which organisms have it? Blood doesn’t stay in vessels, arthropods Click for: Answer and next Question

11. How do newborns get antibodies? Passive immunity from mother Click for: Answer and next Question

12. Which cells are responsible for the rapid secondary response of the immune system? memory Click for: Answer and next Question

13. What is the main function of the immune (lymphatic) system? Produce lymphocytes (T cells B cells) Click for: Answer and next Question

14. What are non-specific defenses? Skin, fever, Complement, NK cells, inflammation Click for: Answer and next Question

15. What is an incomplete digestive system? System with one opening Click for: Answer and next Question

16. Name an organism that is a continuous feeder. Clam Whales Oysters Click for: Answer and next Question

17. What structure do organisms have that increases the surface area in the intestines? villi Click for: Answer and next Question

18. What structure do organisms have that increases the surface area in the lungs? alveoki Click for: Answer and next Question

19. What structures do organisms have that increases the surface area in the kidneys? nephrons Click for: Answer and next Question

20. Name 3 ways of increasing surface area for gas exchange. Long, flat body Long, thin body Finely divided gills Alveoli Click for: Answer and next Question

21. What is conditions are necessary for gas exchange? Thin, moist, Large surface area Click for: Answer and next Question

22. What is counter-current flow? 2 fluids go in different directions to maximize exchange Click for: Answer and next Question

23. Where are two places in organisms where counter- current flow occurs? Fish gills Mammal kidneys Mammal lungs Click for: Answer and next Question

24. Which organisms have a one directional flow for gas exchange? birds Click for: Answer and next Question

25. During excretion, organism remove what substance from their bodies? Metabolic wastes, from breakdown of proteins Click for: Answer and next Question

26. Why do birds and reptiles produce uric acid? Less toxic, Spend time in egg Click for: Answer and next Question

27. Which organisms have to worry about losing water, so they will drink salt water? Marine fish Click for: Answer and next Question

28. What are Malpighian tubules and nephridia? Excretory structures in arthropods and worms Click for: Answer and next Question

29. Which organisms have a ladder-like nervous system? planarians Click for: Answer and next Question

30. What is cephalization? The development of a head and brain Click for: Answer and next Question

31. What is an action potential? Sending of a message down a neuron Click for: Answer and next Question

32. What organic molecule is broken down in the human mouth? Starch (complex carbohydrate) Click for: Answer and next Question

33. Where are most proteins broken down in the human digestive system? The stomach Click for: Answer and next Question

34. The type of respiration where gases are exchanged between blood and tissue fluid is? internal Click for: Answer and next Question

35. Which nitrogenous waste product requires the most energy to make? Uric acid Click for: Answer and next Question

36. Which nitrogen waste produce is most toxic? ammonia Click for: Answer and next Question

37. What metabolic waste produce is excreted by most fish? ammonia Click for: Answer and next Question

38. The space between one neuron and other is called? synapse Click for: Answer and next Question

39. At rest the inside of a neuron is + or --? negative Click for: Answer and next Question

40. What two organs compose the CNS? Brain and spinal cord Click for: Answer and next Question

41. Which senses are controlled by mechanoreceptors? Hearing and touch Click for: Answer and next Question

42. Which sense is controlled by a photoreceptor? sight Click for: Answer and next Question

43. Which senses are controlled by chemoreceptors? Smell and taste Click for: Answer and next Question

44. What is ATP used for in muscle contration? Pivoting of myosin and detachment Click for: Answer and next Question

45. What type of skeleton is found in a clam? exoskeleton Click for: Answer and next Question

46. What type of skeleton is found in an earthworm? Hydrostatic Click for: Answer and next Question

47. Which hormone is responsible for ants following each other on a trail? pheromone Click for: Answer and next Question

48. What is the functional unit of the nervous system? neurons Click for: Answer and next Question

49. Which hormones go through the cell membrane and are bound to nucleus to cause cell changes? steriod Click for: Answer and next Question

50. Which hormones are bound to the cell membrane to cause cell changes? peptide Click for: Answer and next Question

51. Which system controls long-term changes in the body? endocrine Click for: Answer and next Question