This quiz works best with JavaScript enabled. Home > Science > Biology > Biology – Quiz 45 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Biology Quiz 45 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Fish can regulate movement in water using which body structure? A) Swim Bladder. B) Lungs. C) Gills. D) Dorsal Fins. Show Answer Correct Answer: A) Swim Bladder. 2. What are Okazaki fragments? A) Sections of RNA removed by DNA polymerase III and replaced with DNA. B) Nucleotides added by DNA polymerase I in the same direction as the replication fork. C) Short sections of DNA formed during DNA replication. D) Short lengths of RNA primase attached to the DNA during replication. Show Answer Correct Answer: C) Short sections of DNA formed during DNA replication. 3. This is the branch of biology that deals with the normal functions of living organisms or bodily part functions ..... A) Biology. B) Zoology. C) Physiology. D) None of above. Show Answer Correct Answer: C) Physiology. 4. A phenotype that improves an organism's chance of survival in their environment is considered a(n) ..... A) Natural selection. B) Adaption. C) Speciation. D) None of above. Show Answer Correct Answer: B) Adaption. 5. Physical and biochemical functions and processes of organisms. A) Physiology. B) Anatomy. C) Cytology. D) Morphology. Show Answer Correct Answer: A) Physiology. 6. It is the study of inheritance of characters or heredity and variations. Heredity is the study of expression and transmission of traits from parents to offspring. A) Genetics. B) Entomology. C) Immunology. D) Pharmacology. Show Answer Correct Answer: A) Genetics. 7. During respiration plants take in A) Cabondioxide. B) Oxygen. C) Nitrogen. D) Water. Show Answer Correct Answer: B) Oxygen. 8. It is the study of external form, size, shape, colour, structure and relative position of various living organ of living beings. A) Physiology. B) Morphology. C) Histology. D) Cytology. Show Answer Correct Answer: B) Morphology. 9. In what organelle is the genetic material found inside? A) Endoplasmic Reticulum. B) Golgi Complex. C) Nucleolus. D) Nucleus. Show Answer Correct Answer: D) Nucleus. 10. What are the 2 uses of bird feathers? A) Grooming and flight. B) Fighting and warmth. C) Warmth and grooming. D) Flights and warmth. Show Answer Correct Answer: D) Flights and warmth. 11. What does a nucleosome consist of? A) DNA and histones. B) DNA and chromatin. C) Chromatin and nucleotides. D) Mature RNA and histones. Show Answer Correct Answer: A) DNA and histones. 12. What do you call the first organism in a food chain? A) Predator. B) Prey. C) Consumer. D) Producer. Show Answer Correct Answer: D) Producer. 13. What do cilia and flagella have in common? A) Both used for digestion. B) Both used for gathering food. C) Both used for movement. D) Both used for reproduction. Show Answer Correct Answer: C) Both used for movement. 14. Mammalogy is the branch of zoology concerned with A) Fish. B) All sea animals. C) Bees. D) Mammals. Show Answer Correct Answer: D) Mammals. 15. The term gene was coined by A) Watson. B) Crick. C) Mendel. D) W.Johanson. Show Answer Correct Answer: D) W.Johanson. 16. What is a characteristic of xerophytes? A) Absence of roots. B) Absence of vascular tissue. C) Leaves with very small surface area. D) Large number of stomata. Show Answer Correct Answer: C) Leaves with very small surface area. 17. Why might gibberellin hormone be used in micropropagation? A) To stimulate development of roots and shoots. B) To prevent dormancy. C) To stimulate cell division. D) To prevent dehydration. Show Answer Correct Answer: B) To prevent dormancy. 18. Study of Body Parts and Their Location A) Anatomy. B) Cytology. C) Ecology. D) Entomology. Show Answer Correct Answer: A) Anatomy. 19. Why are invasive species such a problem in their new ecosystem? A) The new ecosystem isn't adapted to their presence. B) The new ecosystem is probably weaker than the native one. C) They have mutations making them more adapted to the new ecosystem. D) They cause mutations in the native species. Show Answer Correct Answer: A) The new ecosystem isn't adapted to their presence. 20. How does the heart work? A) It pumps blood first to the lungs, back to the heart and then around the rest of the body. B) It pumps blood first to the rest of the body, back to the lungs and then to the heart. C) It pumps blood around the rest of the body, back to the heart and then to the lungs,. D) None of above. Show Answer Correct Answer: A) It pumps blood first to the lungs, back to the heart and then around the rest of the body. ← PreviousNext →Related QuizzesScience QuizzesBiology Quiz 1Biology Quiz 2Biology Quiz 3Biology Quiz 4Biology Quiz 5Biology Quiz 6Biology Quiz 7Biology Quiz 8Biology Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books