This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Biology > Zoology – Quiz 20 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Zoology Quiz 20 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Animal that has 3 cell layers, with a digestive tract but no body cavities A) Coelomate. B) Sessile. C) Acoelomate. D) Pseudocoelomate. Show Answer Correct Answer: C) Acoelomate. 2. Somatic cells are..... A) Zygotes. B) Haploid. C) Sexual. D) Diploid. Show Answer Correct Answer: D) Diploid. 3. A fall in glomerular filtration rate (GFR) activates A) Juxta Glomerular cells to release renin. B) Adrenal medulla to release adrenaline. C) Posterior pituitory to release vasopressin. D) Adrenal cortex to release aldosterone. Show Answer Correct Answer: A) Juxta Glomerular cells to release renin. 4. This appendage of the mollusc is used for movement and grasping. A) Foot. B) Ctenidia. C) Mantle. D) Radula. E) Limpet. Show Answer Correct Answer: A) Foot. 5. The tiny little puffer fish blows itself up to several times its normal size when happy. A) False. B) True. Show Answer Correct Answer: A) False. 6. At retrogressive metamorphosis, the urochordate larva A) Loss notochord. B) Loss tail. C) Experience reduction of nervous system to a visceral ganglion. D) All the above. Show Answer Correct Answer: D) All the above. 7. Why is understanding the anatomy of animals crucial? A) To identify different species and understand their functions and behaviors. B) To study the anatomy of plants. C) To understand the weather patterns. D) To study the anatomy of rocks. Show Answer Correct Answer: A) To identify different species and understand their functions and behaviors. 8. Identify the correct phylum:sea cucumber A) Echinoderms. B) Cnidarians. C) Arthropoda. D) Worms. E) Mollusca. Show Answer Correct Answer: A) Echinoderms. 9. There are two types of chordates-vertebrate chordates and invertebrate chordates. A) False. B) True. Show Answer Correct Answer: B) True. 10. Mussels are from what class? A) Gastropods. B) Polyplacophora. C) Bivalves. D) Cephllopoda. Show Answer Correct Answer: C) Bivalves. 11. The protein which makes the skin of reptilians hard, waterproof, and scaly is called ..... A) Amphi. B) Aquatic. C) Operculum. D) Keratin. Show Answer Correct Answer: D) Keratin. 12. The subfamily of "roaring" cats is ..... A) Felines. B) Felidae. C) Pantherinae. D) Hyena. Show Answer Correct Answer: C) Pantherinae. 13. The definition of taxonomy is: A) The study of taxes. B) The way you prepare taxes. C) The process of adding taxes to a purchase. D) A way to classify anything. Show Answer Correct Answer: D) A way to classify anything. 14. Which TYPE of mollusk has ONE or NO shell? A) Bivalve. B) Gastropod. C) Cephalopods. D) None of above. Show Answer Correct Answer: B) Gastropod. 15. Which of the following is NOT one of the animal taxa mentioned in the learning objectives? A) Platyhelminthes. B) Chordata. C) Cnidarians. D) Porifera. Show Answer Correct Answer: B) Chordata. 16. The study of birds is called A) Ornithology. B) Herpetology. C) Zoology. D) Ichthyology. Show Answer Correct Answer: A) Ornithology. 17. What are the four traits that classify a mammal? A) Tall, skinny, big tail, stripes. B) Scales, eggs, legs, teeth. C) Hair, bones, claws, live birth. D) Fur/hair, Backbone, Nervous System, Milk. Show Answer Correct Answer: D) Fur/hair, Backbone, Nervous System, Milk. 18. Which marsupials play dead and are immune to most poisons? A) Kangaroos. B) Bilbs. C) Koalas. D) Virginia opossums. Show Answer Correct Answer: D) Virginia opossums. 19. Egg laying mammals A) Monotreme. B) Marsupial. C) Placental. D) None of above. Show Answer Correct Answer: A) Monotreme. 20. In many birds, a diverticulum in the es0phasgus, the ....., can be used to store large quantities of food. A) Pyloric cecum. B) Crop. C) Gizzard. D) Duodenum. Show Answer Correct Answer: B) Crop. 21. The number of different types of species in an ecosystem A) Biodiversity. B) Evenness. C) Richness. D) Hot spot. Show Answer Correct Answer: C) Richness. 22. Tissue that gives warmth to newborns A) White adipose tissue. B) Brown adipose tissue. C) Yellow adipose tissue. D) Above. Show Answer Correct Answer: B) Brown adipose tissue. 23. What is a life span of a koala? A) 5 years. B) 15 years. C) 20 years. D) 10 years. Show Answer Correct Answer: C) 20 years. 24. The junction between a muscle cell and the neuron innervating that cell is the A) Synaptic knob. B) Neuroglandular junction. C) Neuromuscular junction. D) Sarcoplasm. Show Answer Correct Answer: C) Neuromuscular junction. 25. Before entering the ring canal, water must pass through the ..... A) Stone canal. B) Radial canals. C) Tube feet. D) Ampoules. Show Answer Correct Answer: A) Stone canal. 26. Propagation and domination of dinosaurs on the land fauna. A) Jurassic. B) Quaternary. C) Cambrian. D) Triassic. Show Answer Correct Answer: A) Jurassic. 27. Which of the following animals is a mollusk? A) Bee. B) Jellyfish. C) Lobster. D) Snail. Show Answer Correct Answer: D) Snail. 28. What is the relationship between genetic diversity and the long-term survival of species? A) Genetic diversity has no impact on the long-term survival of species. B) Genetic diversity is not important for the long-term survival of species. C) Genetic diversity is essential for the long-term survival of species. D) Genetic diversity is only important for short-term survival of species. Show Answer Correct Answer: C) Genetic diversity is essential for the long-term survival of species. 29. Canal system is characteristic of phylum A) Cnidarians. B) Porifera. C) Ctenophora. D) Nematodes. Show Answer Correct Answer: B) Porifera. 30. Amphibia came from the Greeks word, ..... meaning both kinds and bios meaning life A) Amphi. B) Keratin. C) Operculum. D) Aquatic. Show Answer Correct Answer: A) Amphi. 31. Amphibians do not have the following: A) Three chambered heart. B) Gills or lungs. C) Scales. D) Mucus glands. Show Answer Correct Answer: C) Scales. 32. Epinephrine released from A) A adrenal medulla. B) B sympathetic neurons. Show Answer Correct Answer: A) A adrenal medulla. 33. Which class of mollusks are sedentary filter feeders with two shells joined by a hinge? A) Gastropods. B) Bivalves. C) Cephalopods. D) None of above. Show Answer Correct Answer: B) Bivalves. 34. Which of the following is NOT one of the three main groups of animals based on body symmetry? A) Asymmetrical. B) Bilaterally symmetrical. C) Spherically symmetrical. D) Radially symmetrical. Show Answer Correct Answer: C) Spherically symmetrical. 35. The contributors of the Hardy-Weinberg Theory about the criteria a population must meet in order to not be evolving. A) Gould. B) Lyell. C) Darwin. D) Hardy and Weinberg. E) Wallace. Show Answer Correct Answer: D) Hardy and Weinberg. 36. ..... is the study of the shape and function of organisms and their specific structural features. A) Biology. B) Taxonomy. C) Morphology. D) Zoology. Show Answer Correct Answer: C) Morphology. 37. Animals that eat only plants are called? A) Herbivores. B) Carnivores. C) Omnivores. D) None of above. Show Answer Correct Answer: A) Herbivores. 38. Define the term "deference." A) Arrogance and disrespect. B) Humble submission and respect. C) Indifference and disregard. D) None of above. Show Answer Correct Answer: B) Humble submission and respect. 39. Barnacles grow on whales. Whales give the barnacles a place to live but the barnacles do not help or harm the whale. Which type of relationship is this? A) Commensalism. B) Mutualism. C) Parasitiesm. D) None of above. Show Answer Correct Answer: A) Commensalism. 40. Choose the word or phrase to complete the collocation. launch a new ..... A) A meeting. B) Product. C) Trading. D) Turnover. Show Answer Correct Answer: B) Product. 41. More than 2000 years ago, ....., a Greek teacher and philosopher, was the first person to group or classify organisms:plants and animals. A) Aristotle. B) Olympus. C) Socrates. D) Plato. Show Answer Correct Answer: A) Aristotle. 42. How often should water changes be performed in a well-maintained aquarium? A) Every week. B) Every month. C) Every day. D) Every two weeks. Show Answer Correct Answer: D) Every two weeks. 43. Vertebrate animals have an ..... A) Exoskeleton. B) Internal skeleton. C) Soft body. D) Long legs. Show Answer Correct Answer: B) Internal skeleton. 44. Involved in language comprehension and expression. A) Wernicke's Area. B) Broca's Area. C) Amygdala. D) None of above. Show Answer Correct Answer: A) Wernicke's Area. 45. Which of the following is a microscopic aquatic animal? A) Ascaris. B) Tape worm. C) Rotifer. D) Fan worm. Show Answer Correct Answer: C) Rotifer. 46. What class do cartilaginous fish belong to? A) Myxin. B) Sarcopterygii. C) Chondrichthyes. D) Actinopterygii. Show Answer Correct Answer: C) Chondrichthyes. 47. Which out of the following statements is incorrect? A) Genetic code is universal. B) Genetic code is non-overlanning. C) Genetic code is degenerate. D) Genetic code is ambiguous. Show Answer Correct Answer: D) Genetic code is ambiguous. 48. What is the function of the siphon in cephalopods? A) Excretion. B) Jet propulsion. C) Feeding. D) Respiration. Show Answer Correct Answer: B) Jet propulsion. 49. Who developed the current system used to classify living organisms? A) Aristotle. B) Charles Darwin. C) Charles Linnaeus. D) Ernst Mayr. Show Answer Correct Answer: C) Charles Linnaeus. 50. Semilunar valves are A) A aortic valve. B) B pulmonary valve. C) C mitral valve. D) D both a and b. Show Answer Correct Answer: D) D both a and b. 51. Frogs reach the adult stage of their life around ..... months old. A) 2. B) 4. C) 6. D) 3. Show Answer Correct Answer: B) 4. 52. Monkeys and squirrels are..... animals. A) Aquatic. B) Amphibians. C) Terrestrial. D) Arboreal. Show Answer Correct Answer: D) Arboreal. 53. Organisms whose cells have NO nucleus are classified as ..... A) Eukaryotic. B) Prokaryotic. C) Dead. D) None of above. Show Answer Correct Answer: B) Prokaryotic. 54. Which class of Mollusks includes species like chitons? A) Gastropods. B) Polyplacophora. C) Cephalopods. D) Bivalves. Show Answer Correct Answer: B) Polyplacophora. 55. The naming of animals fall under the study of ..... A) Paleontology. B) Taxonomy. C) Physiology. D) Genetics. Show Answer Correct Answer: B) Taxonomy. 56. Animals having identical right and left sides are also known as ..... A) Radially symmetrical. B) Bilaterally symmetrical. C) Laterally symmetrical. D) Asymmetrical. Show Answer Correct Answer: B) Bilaterally symmetrical. 57. It consists of organisms that attach themselves to plants or rocks. A) Phylum Platyhelminthes. B) Phylum Porifera. C) Phylum Nemathelminthes. D) Phylum Cnidaria. Show Answer Correct Answer: B) Phylum Porifera. 58. Which of the following referred as LAB bacteria A) A L. acitophilus. B) B L. of milk. C) C streptococcus. D) D all the above. Show Answer Correct Answer: D) D all the above. 59. Structures that have similar functions in two organisms but that have not evolved from a common ancestral form are called A) Fossils. B) Analogous structures. C) Homologous structures. D) Adaptations. Show Answer Correct Answer: B) Analogous structures. 60. What is the fastest land animal? A) Horse. B) Monkey. C) Lion. D) Cheetah. Show Answer Correct Answer: D) Cheetah. ← 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