This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Biology > Zoology – Quiz 18 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Zoology Quiz 18 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Food mixed with acidic gastric juice in stomach is called: A) Peptones. B) Chyme. C) Chylomicrons. D) Bolus. Show Answer Correct Answer: B) Chyme. 2. Area where all things that need to leave the body of the frog are sent to A) Cloaca. B) Esophagus. C) Stomach. D) Kidney. Show Answer Correct Answer: A) Cloaca. 3. Which of the following is a correct description of the Cnidarian digestive tract? A) A complete digestive tract consisting of one opening. B) An incomplete digestive tract consisting of one opening. C) A complete digestive tract consisting of two openings. D) An incomplete digestive tract consisting of two openings. Show Answer Correct Answer: B) An incomplete digestive tract consisting of one opening. 4. Fishes in the class Osteichthyes are classified because they have ..... skeletons. A) Bony. B) No. C) Jules. D) Cartilage. Show Answer Correct Answer: A) Bony. 5. How do mitochondria regulate energy in a cell? A) Mitochondria transfer energy between cells as energy is needed. B) Mitochondria convert energy in nutrients into usable energy. C) Mitochondria absorb and convert energy from the sun. D) Mitochondria convert energy from the nucleus into usable energy. Show Answer Correct Answer: B) Mitochondria convert energy in nutrients into usable energy. 6. How are vertebrates and invertebrates alike? A) They don't have backbones. B) They have backbones. C) They reproduce. D) They fly. Show Answer Correct Answer: C) They reproduce. 7. Internal fertilization in vertebrates first appeared in: A) Fish. B) Amphibia. C) Birds. D) Mamals. Show Answer Correct Answer: A) Fish. 8. Which of the following is NOT an arthropod? A) Ringworm. B) Scorpion. C) Spider. D) Crustacean (crab). Show Answer Correct Answer: A) Ringworm. 9. Pay attention to the following animals! These animals are grouped into classes..... with mouth type..... A) Chericerata-chewers. B) Myriapoda-chewers. C) Insect-piercing. D) Insect-chewers. Show Answer Correct Answer: D) Insect-chewers. 10. Which animal can regrow its arm if its broken off? A) Clam. B) Jellyfish. C) Sea otter. D) Starfish. Show Answer Correct Answer: D) Starfish. 11. A mollusk's head may have tentacles for: A) Sensing the environment. B) Grasping food. C) Both A and B. D) None of the above. Show Answer Correct Answer: C) Both A and B. 12. The range of variation in an environmental parameter that is compatible with the life of an organism. A) Geographic range. B) Ecosystem. C) Community. D) Tolerance range. Show Answer Correct Answer: D) Tolerance range. 13. The class that has 20 species divided into four genera, lack vertebrae, and 4 pair of sensory tentacles is what class? A) Petromyzontida. B) Myxin. C) Anura. D) Ostracoderms. Show Answer Correct Answer: B) Myxin. 14. Cold blooded animals with scales and gills A) Fish. B) Reptiles. C) Birds. D) Amphibians. Show Answer Correct Answer: A) Fish. 15. Which animal is a marsupial out of the following? A) Elephant. B) Cat. C) Lion. D) Kangaroo. Show Answer Correct Answer: D) Kangaroo. 16. Flatworms reproduce ..... A) Sexually. B) Asexually. C) Both. D) Neither. Show Answer Correct Answer: C) Both. 17. What is the study of genetics important for in zoology? A) Understanding animal behavior. B) Explaining patterns in structure and function. C) Understanding mechanisms of inheritance. D) Placing taxa in a phylogenetic context. Show Answer Correct Answer: C) Understanding mechanisms of inheritance. 18. What are sleep, hunger, and thirst all examples of? A) Learned behaviors. B) Responses to external stimuli. C) Responses to internal stimuli. D) Reflexes. Show Answer Correct Answer: C) Responses to internal stimuli. 19. Our body needs ..... litres of water every day A) 1/2. B) 7-8. C) 10-15 tags2. D) 2-3. Show Answer Correct Answer: D) 2-3. 20. Tiger is a ..... because it eat only meat A) Carnivores. B) Herbivores. C) Omnivores. D) None tags2. Show Answer Correct Answer: A) Carnivores. 21. The tropic rain-forest has a large population of animals because of continuous A) Cold and rain. B) Hot and dry. C) Warmth and rain. D) All of these tags1. Show Answer Correct Answer: C) Warmth and rain. 22. What is called flying vertebrates A) Birds. B) Amphibians. C) Reptiles. D) Mammals. Show Answer Correct Answer: A) Birds. 23. What do you call it when two or more species are competing for the same resources? A) Predation. B) Commensalism. C) Competition. D) Mutualism. Show Answer Correct Answer: C) Competition. 24. Refer to the given figure showing ventral view of human heart and select the correct options for P, Q, R and S A) Pulmonary artery, aorta, inferior Vena cava, superior Vena cava. B) Aorta, pulmonary artery, superior Vena cava, inferior Vena cava. C) Pulmonary vein, aorta, superior vena cava, inferior vena cava. D) Aorta, pulmonary vein, superior Vena cava, inferior Vena cava. Show Answer Correct Answer: B) Aorta, pulmonary artery, superior Vena cava, inferior Vena cava. 25. The circulation seen in frog is A) D complete double circulation. B) C incomplete double circulation. C) A complete circulation. D) B incomplete circulation. Show Answer Correct Answer: B) C incomplete double circulation. 26. These animals have wings and feathers. Their bones are hollow so that they can fly. These animals are called ..... A) Terrestrial. B) Amphibians. C) Reptiles. D) Aerial. Show Answer Correct Answer: D) Aerial. 27. Paramecium belongs to the phylum ..... A) Protozoa. B) Annelids. C) Arthropoda. D) Porifera. Show Answer Correct Answer: A) Protozoa. 28. How is the giraffes height support its survival? A) Can reach water further out. B) They can see distant habitats. C) They have little competition for food. D) They can eat their food. Show Answer Correct Answer: C) They have little competition for food. 29. Zoology is the study of: A) People. B) Animals. C) Biology. D) Plants. Show Answer Correct Answer: B) Animals. 30. Which of these gases makes up Earth's early atmosphere A) Oxygen and carbon dioxide. B) Water vapor and nitrogen. C) Carbon monoxide and hydrogen. D) None of above. Show Answer Correct Answer: B) Water vapor and nitrogen. 31. What are hair-like structures that animal cells posses but plant cells always lack? A) Cilia. B) Flagella. C) Protozoa. D) Diatoma. Show Answer Correct Answer: A) Cilia. 32. The hard "skeleton" structures in a sponge are called ..... A) Nematocysts. B) Spicules. C) The sponge. D) Amoebocytes. Show Answer Correct Answer: B) Spicules. 33. What is the term for a trait that is passed down from parents and can vary among individuals of a species? A) Exaptation. B) Adaptation. C) Heritable trait. D) Vestigial trait. Show Answer Correct Answer: C) Heritable trait. 34. Crustacea, Chilopoda, and Insecta are classes of Phylum Arthropoda. A) False. B) True. Show Answer Correct Answer: B) True. 35. What type of symmetry divides an organism into mirror image halves? A) Bilateral Symmetry. B) Radial Symmetry. C) Asymmetry. D) None of above. Show Answer Correct Answer: A) Bilateral Symmetry. 36. What are nephridia? A) Digestive organ. B) Excretory organ. C) Respiratory organ. D) Circulatory organ. Show Answer Correct Answer: B) Excretory organ. 37. Our professor has written dozens of ..... on economic policy. A) Wonders. B) Article. C) Wonder. D) Articles. Show Answer Correct Answer: D) Articles. 38. Fossils of sauropods have been found on every continent, except Antarctica. A) False. B) True. Show Answer Correct Answer: A) False. 39. Kangaroos, koalas, and opossums are A) Monotremes. B) Placentals (eutherians). C) Marsupials. D) All of these. Show Answer Correct Answer: C) Marsupials. 40. Which of the following is/are true of animals? A) They are multicellular. B) They are eukaryotic. C) They are heterotrophs. D) All choices are correct. Show Answer Correct Answer: D) All choices are correct. 41. In a properly written scientific name, which part is lowercase? A) Genus. B) Species. Show Answer Correct Answer: B) Species. 42. Which term of direction refers to the tail end? A) Dorsal. B) Ventral. C) Anterior. D) Posterior. Show Answer Correct Answer: D) Posterior. 43. What is the general rule for fish eating other fish? A) Fish will eat other fish that are 1/3 their size or smaller. B) Fish will eat other fish that are 3/4 their size or smaller. C) Fish will eat other fish that are 1/2 their size or smaller. D) Fish will eat other fish that are 2/3 their size or smaller. Show Answer Correct Answer: A) Fish will eat other fish that are 1/3 their size or smaller. 44. Gastropods have ..... for feeding. A) Radula. B) 2 shells. C) Siphons. D) Tentacles. Show Answer Correct Answer: A) Radula. 45. Animals that are permanently attached to a surface are called what? A) For Moti. B) Sessile. C) Migratory. D) Sedentary. Show Answer Correct Answer: B) Sessile. 46. The mammals are ..... A) Invertebrates. B) Microorganism. C) Reptiles. D) Vertebrates. Show Answer Correct Answer: D) Vertebrates. 47. The period of geologic time when the biodiversity of life on the planet increased dramatically was A) Cambrian. B) Jurassic. C) Triassic. D) Permian. Show Answer Correct Answer: A) Cambrian. 48. Aquaculture is the farming of aquatic organisms such as fish, crustaceans, mollusks and aquatic plants. Oysters are commonly produced this way. How much oyster meat is produced by farms in Europe, Japan and the US? A) 1, 000, 000, 000 pounds each year. B) 100, 000, 000 pounds each year. C) 1, 000, 000 pounds each year. D) 10, 000, 000 pounds each year. Show Answer Correct Answer: A) 1, 000, 000, 000 pounds each year. 49. Starfish, sea lilies and sea urchins belong to the same phylum. A) True. B) False. Show Answer Correct Answer: A) True. 50. Alligators are no longer endangered because of the help of Alligator farms. A) False. B) True. Show Answer Correct Answer: B) True. 51. Can enantiomer rotates plane-polarised light? A) Yes in all situations. B) No because it is optically active. C) Yes but it can only rotate the polarised light in opposite direction. D) No due to its restricted rotation of carbon-carbon double bond. Show Answer Correct Answer: C) Yes but it can only rotate the polarised light in opposite direction. 52. Which of the following is a disease caused by alcohol? A) Degenerative liver disease. B) Diabetes. C) Joint Pain. D) All of the above. Show Answer Correct Answer: A) Degenerative liver disease. 53. Cartilaginous fish which include sharks, rays, skates, and chimeras all fall into the group called ..... A) Elasmobranchs. B) Cartilage. C) Gills. D) Osteichthyes. Show Answer Correct Answer: A) Elasmobranchs. 54. How do reptiles warm themselves up? A) Move into the shade. B) Bask in the sun. C) Speed up its metabolism. D) Crawl into an underground burrow. Show Answer Correct Answer: B) Bask in the sun. 55. What type of asexual reproduction is hydra? A) Regeneration. B) Budding. C) Fertilization. D) Parthenogenesis. Show Answer Correct Answer: B) Budding. 56. Where does inhibitor binds on enzyme in mixed inhibition? A) At active site. B) Allosteric site. C) Does not bind on enzyme. D) Binds on substrate. Show Answer Correct Answer: B) Allosteric site. 57. How do octopuses show emotion? A) They quite smart. B) They turn red. C) They like to play. D) They change color. Show Answer Correct Answer: D) They change color. 58. What does Cephalopod mean? A) Means "soft bodied". B) Means "2-shells". C) Means "stomach-foot". D) Means "head-foot". Show Answer Correct Answer: D) Means "head-foot". 59. In which type of organism did the first opening of the gastrula develop into the mouth during the formation of the digestive system? A) Acoelomate. B) Pseudocoelomate. C) Protostome. D) Deuterostome. Show Answer Correct Answer: C) Protostome. 60. The function of the branchial hearts in cephalopods is: A) To pump blood to the very ends of all arms and tentacles. B) To pump water through the siphon and provide propulsion for locomotion. C) To store unused blood in a reservoir and squirt it out at predators, leaving a cloud in the water and allowing the cephalopod to escape capture. D) To increase the pressure of blood flowing through gill capillaries that oxygenate blood. Show Answer Correct Answer: D) To increase the pressure of blood flowing through gill capillaries that oxygenate blood. ← PreviousNext →Related QuizzesScience QuizzesGeneral Knowledge QuizzesZoology Quiz 1Zoology Quiz 2Zoology Quiz 3Zoology Quiz 4Zoology Quiz 5Zoology Quiz 6Zoology Quiz 7Zoology Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books