This quiz works best with JavaScript enabled. Home > Science > Zoology – Quiz 81 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Zoology Quiz 81 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Means "soft bodied" A) Bivalves. B) Cephalopods. C) Mollusca. D) Gastropods. Show Answer Correct Answer: C) Mollusca. 2. Squid are from what class? A) Polyplacophora. B) Gastropods. C) Bibles. D) Cephalopods. Show Answer Correct Answer: D) Cephalopods. 3. Which group of animals does this list of characteristics describe?-four-chambered heart-nurses young with milk-has hair or fur-births live young A) Amphibians. B) Reptiles. C) Echinoderms. D) Mammals. Show Answer Correct Answer: D) Mammals. 4. All the fission products are radioactive. A) True. B) False. Show Answer Correct Answer: A) True. 5. Which animal does not have a diet that mainly consists of insects? A) Squirrel. B) Anteater. C) Armadillo. D) Aardvark. Show Answer Correct Answer: A) Squirrel. 6. What do cephalopods use to swim? A) Arms. B) Legs. C) Foot. D) Jet propulsion. Show Answer Correct Answer: D) Jet propulsion. 7. What do ecosystems contain? A) Only the biotic factors of an area. B) Only the abiotic factors of an area. C) Animals of the same species. D) All abiotic and biotic factors in an area. Show Answer Correct Answer: D) All abiotic and biotic factors in an area. 8. Ducks are primarily raised for feather production in the poultry industry A) True. B) False. Show Answer Correct Answer: B) False. 9. The eyes of octopus and of mammals are example for A) A homologus organs. B) B vestigial organ. C) C analogous organs. D) None of above. Show Answer Correct Answer: C) C analogous organs. 10. Proteins are converted in to A) Amino acids. B) Starch. C) Glucose. D) Glycerol tags2. Show Answer Correct Answer: A) Amino acids. 11. A person becoming weak or thin leads to lack of which type of nutrients A) Proteins and carbohydrates. B) Vitamin A and vitamin C. C) Fats and carbohydrates. D) Starch and sugar tags2. Show Answer Correct Answer: A) Proteins and carbohydrates. 12. The creatures of acarina are parasites, which means they ..... A) Eat dust particles. B) Make you itchy. C) Live off of other creatures. D) Catch spiders. Show Answer Correct Answer: C) Live off of other creatures. 13. Birds migrate to warmer regions bacause they cannot live in A) Wet region. B) Dry region. C) Cold region. D) Hot region tags3. Show Answer Correct Answer: B) Dry region. 14. Primitive molluscs will only complete a larval stage known as a ..... while more advanced molluscs will complete a second larval stage called the ..... A) Trochophore, veliger. B) Veliger, spat. C) Veliger, trocophore. D) Veliger, glochidia. Show Answer Correct Answer: A) Trochophore, veliger. 15. As adults, amphibians breathe through ..... A) Gills and skin. B) Lungs and gills. C) Lungs and skin. D) Feet. Show Answer Correct Answer: C) Lungs and skin. 16. The respiratory process is regulated by respiratory rhythm center present in the brain which is? A) Stimulated by lower O2 and H+ concentration in aortic arch. B) Inhabited by higher O2 and H+ concentration. C) Stimulated by highest CO2 and higher H+ concentration. D) Stimulated by lower O2 and H+ concentration in carotid artery. Show Answer Correct Answer: C) Stimulated by highest CO2 and higher H+ concentration. 17. Turtles, lizards, snakes and crocodiles are all examples of what class? A) Amphibians. B) Reptiles. C) Birds. D) Mammals. Show Answer Correct Answer: B) Reptiles. 18. Rana hexadactyla belongs to A) Amphibia. B) Reptile. C) Aves. D) Mammals. Show Answer Correct Answer: A) Amphibia. 19. Which class of Mollusks include clams, oysters, and mussels? A) Gastropods. B) Bivalves. C) Cephalopods. D) None of above. Show Answer Correct Answer: B) Bivalves. 20. What percentage of organisms that have ever lived are extinct? A) Less than 1%. B) More than 99%. C) 50%. D) 80%. Show Answer Correct Answer: B) More than 99%. ← PreviousNext →Related QuizzesZoology Quiz 1Zoology Quiz 2Zoology Quiz 3Zoology Quiz 4Zoology Quiz 5Zoology Quiz 6Zoology Quiz 7Zoology Quiz 8Zoology Quiz 9Zoology Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books