This quiz works best with JavaScript enabled. Home > Science > Biology > Biological Sciences – Quiz 12 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Biological Sciences Quiz 12 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. All polymers are made up of ..... A) Monosaccharides. B) Monomers. C) Proteins. D) None of these. Show Answer Correct Answer: B) Monomers. 2. Pteridophytes were much more abundant at least ..... million years ago in the Pennsylvanian period than they are today. A) 400. B) 200. C) 100. D) 300. Show Answer Correct Answer: D) 300. 3. Which of the following is NOT one of the phyla of invertebrates> A) Nematoda. B) Annelida. C) Echinodermata. D) Amphibians. Show Answer Correct Answer: D) Amphibians. 4. About ..... percent of the plasma is water. A) 70. B) 80. C) 90. D) 95. Show Answer Correct Answer: C) 90. 5. What is a species? A) A living organism. B) A hybrid organism. C) A group of organisms that can interbreed. D) An organism in an ecosystem. Show Answer Correct Answer: C) A group of organisms that can interbreed. 6. Which of the following organic compounds is the main source of energy for living things? A) Carbohydrates. B) Lipids. C) Nucleic acids. D) Proteins. Show Answer Correct Answer: A) Carbohydrates. 7. What happens to most organisms when they die? A) They are mummified. B) They make cast fossils. C) They make mold fossils. D) They get scattered by predators and are not fossilized. Show Answer Correct Answer: D) They get scattered by predators and are not fossilized. 8. The binomial modern system of classification of plants and animals was introduced by Linnaeus (1707-1778).How was a ..... naturalist. A) English. B) Polish. C) Spanish. D) Swedish. Show Answer Correct Answer: D) Swedish. 9. Cooperation is when A) Animals fight. B) Animals work together for the benefit of the group. C) Animals only care about their own individual survival. D) One animal eats the other. Show Answer Correct Answer: B) Animals work together for the benefit of the group. 10. All organic compounds contain the element A) Carbon. B) Nitrogen. C) Phosphorus. D) Sulfur. Show Answer Correct Answer: A) Carbon. 11. Snow leopard jaguar are. A) Mammals. B) Reptiles. C) Birds. D) Fish. Show Answer Correct Answer: A) Mammals. 12. The colour of the eye id due to the amount of brown pigment present in the. A) Iris. B) Retina. C) Pupil. D) Eyeball. Show Answer Correct Answer: A) Iris. 13. Examples of which biological macromolecule include glucose, fructose, starch, and glycogen? A) Lipids. B) Carbohydrates. C) Nucleic Acids. D) Proteins. Show Answer Correct Answer: B) Carbohydrates. 14. Part of the plant that absorbs water and minerals from the soil. A) Leaf. B) Stem. C) Roots. D) Branch. Show Answer Correct Answer: C) Roots. 15. What can happen to organisms when their environment changes? A) Move. B) Adapt. C) Die. D) All of the above. Show Answer Correct Answer: D) All of the above. 16. All the eggs before the start of cell division are composed of . A) 100 cells. B) 1000 cells. C) Two cells. D) One cells. Show Answer Correct Answer: D) One cells. 17. Plants that complete their life cycle in one year are: A) Perennial. B) Biennial. C) Annual. D) None of these. Show Answer Correct Answer: C) Annual. 18. Consists of all living things in an area with non-living parts of the environment. A) COMMUNITY. B) ECOSYSTEM. C) POPULATION. D) BIOSPHERE. Show Answer Correct Answer: B) ECOSYSTEM. 19. Starfish and jellyfish live in. A) Rivers. B) Shallow coastal waters. C) Fresh water. D) Sea water. Show Answer Correct Answer: B) Shallow coastal waters. 20. Parts of the cell. A) ORGANELLE. B) CELL. C) ORGAN. D) TISSUE. Show Answer Correct Answer: A) ORGANELLE. ← PreviousNext →Related QuizzesScience QuizzesBiological Sciences Quiz 1Biological Sciences Quiz 2Biological Sciences Quiz 3Biological Sciences Quiz 4Biological Sciences Quiz 5Biological Sciences Quiz 6Biological Sciences Quiz 7Biological Sciences Quiz 8Biological Sciences Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books