1. Animal physiology is the study of:
(A) Structure of body organs
(B) Functions of body organs and systems
(C) Animal behavior
(D) Animal evolution
2. In vertebrates, the circulatory system is:
(A) Closed
(B) Open
(C) Absent
(D) Partial
3. Fish have a:
(A) Two-chambered heart
(B) Three-chambered heart
(C) Four-chambered heart
(D) Five-chambered heart
4. Amphibians have a:
(A) One-chambered heart
(B) Two-chambered heart
(C) Four-chambered heart
(D) Three-chambered heart
5. Reptiles (except crocodiles) have:
(A) One-chambered heart
(B) Two-chambered heart
(C) Four-chambered heart
(D) Three-chambered heart
6. Crocodiles and birds have:
(A) Four-chambered heart
(B) Two-chambered heart
(C) Three-chambered heart
(D) One-chambered heart
7. Mammals have:
(A) One-chambered heart
(B) Three-chambered heart
(C) Two-chambered heart
(D) Four-chambered heart
8. Fish respiration occurs via:
(A) Skin
(B) Lungs
(C) Gills
(D) Spiracles
9. Amphibians respire through:
(A) Gills only
(B) Lungs only
(C) Skin, lungs, and gills (larvae)
(D) Spiracles only
10. Reptiles respire through:
(A) Skin only
(B) Gills
(C) Lungs
(D) Spiracles only
11. Birds respire through:
(A) Lungs with air sacs
(B) Gills
(C) Skin only
(D) Lungs without air sacs
12. Mammals respire through:
(A) Air sacs only
(B) Gills
(C) Lungs with diaphragm
(D) Skin only
13. Vertebrate excretion is mainly through:
(A) Skin
(B) Kidneys
(C) Cloaca
(D) Gills only
14. Excretory product of mammals is:
(A) None
(B) Ammonia
(C) Uric acid only
(D) Urea
15. Excretory product of birds and reptiles is:
(A) Ammonia
(B) Urea
(C) Uric acid
(D) None
16. Excretory product of fish and amphibians is:
(A) Ammonia
(B) Uric acid
(C) Urea
(D) None
17. Fish are:
(A) Endothermic
(B) Ectothermic
(C) Warm-blooded
(D) Terrestrial
18. Amphibians are:
(A) Endothermic
(B) Ectothermic
(C) Warm-blooded
(D) Birds
19. Reptiles are:
(A) Ectothermic
(B) Endothermic
(C) Warm-blooded
(D) Birds
20. Birds are:
(A) Cold-blooded
(B) Ectothermic
(C) Endothermic
(D) Amphibious
21. Mammals are:
(A) Cold-blooded
(B) Ectothermic
(C) Endothermic
(D) Amphibians
22. Vertebrate digestion is:
(A) Incomplete
(B) Complete (mouth to anus)
(C) Absent
(D) Single-chambered
23. Carnivorous vertebrates have:
(A) Sharp teeth and short intestines
(B) Flat teeth only
(C) Long intestines only
(D) No teeth
24. Herbivorous vertebrates have:
(A) Short intestines only
(B) Sharp teeth
(C) Flat teeth and long intestines
(D) No teeth
25. Omnivorous vertebrates have:
(A) No teeth
(B) Only flat teeth
(C) Only sharp teeth
(D) Combination of sharp and flat teeth
26. Vertebrate nervous system is:
(A) Ventral only
(B) Dorsal, hollow, and highly developed
(C) Simple nerve net
(D) Absent
27. Brain of vertebrates is divided into:
(A) Only midbrain
(B) Only forebrain
(C) Forebrain, midbrain, hindbrain
(D) Only hindbrain
28. Vertebrate sense organs include:
(A) Only nose
(B) Only eyes
(C) Only ears
(D) Eyes, ears, nose, tongue, skin
29. Fish have:
(A) Only ears
(B) Lateral line system for detecting vibrations
(C) Only skin receptors
(D) Only eyes
30. Bird wings are adapted for:
(A) Digestion
(B) Walking
(C) Swimming
(D) Flight
31. Amphibians exhibit:
(A) Metamorphosis
(B) Direct development only
(C) Budding
(D) Parthenogenesis
32. Reptiles reproduce by:
(A) Internal fertilization
(B) External fertilization
(C) Budding
(D) Parthenogenesis
33. Birds reproduce by:
(A) Parthenogenesis
(B) External fertilization
(C) Budding
(D) Internal fertilization
34. Mammals reproduce by:
(A) Budding
(B) External fertilization
(C) Internal fertilization and viviparity (except monotremes)
(D) Parthenogenesis
35. Monotremes lay:
(A) Eggs
(B) Live young
(C) Spores
(D) Buds
36. Marsupials give birth to:
(A) Underdeveloped young that complete development in pouch
(B) Fully developed young
(C) Eggs
(D) Spores
37. Mammals produce:
(A) Only pouches
(B) Only eggs
(C) Only spores
(D) Milk from mammary glands
38. Vertebrate blood transports:
(A) Only nutrients
(B) Only oxygen
(C) Only carbon dioxide
(D) Oxygen, carbon dioxide, nutrients, and waste
39. Vertebrate blood contains:
(A) Only red blood cells
(B) Red blood cells, white blood cells, platelets, plasma
(C) Only white blood cells
(D) Only plasma
40. Vertebrate hormones are secreted by:
(A) Exocrine glands only
(B) Endocrine glands
(C) Skin
(D) Kidneys only
41. Vertebrate homeostasis is maintained by:
(A) Only skeleton
(B) Nervous and endocrine systems
(C) Only muscles
(D) Only skin
42. Vertebrate locomotion depends on:
(A) Muscles and skeleton
(B) Only skeleton
(C) Only muscles
(D) Only fins
43. Vertebrate digestion involves:
(A) Mouth, esophagus, stomach, intestine, anus
(B) Only stomach
(C) Only mouth
(D) Only intestine
44. Vertebrate excretion removes:
(A) Nutrients
(B) Oxygen
(C) Carbon dioxide
(D) Nitrogenous wastes
45. Fish maintain buoyancy using:
(A) Lungs
(B) Swim bladder
(C) Gills only
(D) Fins only
46. Birds maintain body temperature using:
(A) Feathers and metabolism
(B) Gills
(C) Skin only
(D) Air sacs only
47. Mammals maintain body temperature using:
(A) Hair and metabolism
(B) Skin only
(C) Lungs only
(D) Fins only
48. Vertebrate blood circulation is:
(A) Double in birds and mammals
(B) Single only
(C) Triple only
(D) Absent
49. Vertebrate muscles are:
(A) Skeletal, smooth, and cardiac
(B) Only skeletal
(C) Only smooth
(D) Only cardiac
50. Vertebrate physiology studies:
(A) Functions of organs and systems
(B) Only structure
(C) Only behavior
(D) Only genetics