This quiz works best with JavaScript enabled. Home > Science > Microbiology Agriculture – Quiz 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Microbiology Agriculture Quiz 4 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which process best describes how pure-bred dogs have produced? A) Cloning. B) Selective breeding. C) Cross-breeding. D) Creating hybrids in a lab. Show Answer Correct Answer: B) Selective breeding. 2. How do animals obtain the carbon and nitrogen they need for building materials? A) By eating food. B) By breathing. C) By performing photosynthesis. D) By performing cellular respiration. Show Answer Correct Answer: A) By eating food. 3. Which term refers to the spread of disease in a small region? A) Antibiotic. B) Epidemic. C) Pandemic. D) Parasitic. Show Answer Correct Answer: B) Epidemic. 4. The study of the function and diversity of microbes in their natural environment. A) Plant microbiology. B) Environmental Microbiology. C) Soil microbiology. D) Agricultural Microbiology. Show Answer Correct Answer: B) Environmental Microbiology. 5. Which type of microbe is the smallest? A) Bacteria. B) Viruses. C) Fungi. D) Protists. Show Answer Correct Answer: B) Viruses. 6. Many diseases transmitted by vectors lead to the death of millions of people in the world. Which best explains why African countries are harder hit than other regions of the world? A) Increased number of insects. B) Increased climatic variations. C) Increased pressure from human activities. D) None of above. Show Answer Correct Answer: A) Increased number of insects. 7. Found in the nucleus of all living cells; carries the organism's hereditary information. A) DNA. B) Cell. C) Embryo. D) Cloning. Show Answer Correct Answer: A) DNA. 8. Which type of microbe is not a living thing? A) Bacteria. B) Viruses. C) Fungi. D) Protists. Show Answer Correct Answer: B) Viruses. 9. Why can a person catch a cold many times? A) Changes in weather conditions can cause a person to get a cold. B) People do not develop an immunity to a virus and can be infected over and over. C) There are many kinds of viruses that cause colds and the person can be infected by different cold viruses each time. D) People share food and drinks more often than they think. Show Answer Correct Answer: C) There are many kinds of viruses that cause colds and the person can be infected by different cold viruses each time. 10. Examples of viral diseases A) Strep throat, pneumonia, leprosy, tuberculosis, Lyme disease. B) Athletes foot, ring worm, candida, jock itch. C) Influenza (flu), common cold, chickenpox. measles, AIDS, yellow fever. D) Tick, flea, tapeworm, mosquito, leech, lice, bedbug. Show Answer Correct Answer: C) Influenza (flu), common cold, chickenpox. measles, AIDS, yellow fever. 11. Are non-cellular entities that consist of a nucleic acid core surrounded by a protein coat. A) Bacteria. B) Fungi. C) Protozoa. D) Virus. Show Answer Correct Answer: D) Virus. 12. Humans with HIV can transmit HIV virus to other humans even though they do not show the symptoms of the disease. which term BEST describes the unaffected individuals? A) Carrier. B) Contagion. C) Mutagen. D) Vector. Show Answer Correct Answer: A) Carrier. 13. Which is the most effective defense against the chicken pox virus? A) Antibiotics. B) Diet. C) Vaccines. D) None of above. Show Answer Correct Answer: C) Vaccines. 14. A mosquito that transmits malaria from one person to another is A) A bacterium. B) A parasite. C) An infection. D) A vector. Show Answer Correct Answer: D) A vector. 15. Health department officials are trying to identify the source of an outbreak of an intestinal virus. Which is the MOST LIKELY source of the virus? A) Polluted air. B) Lack of exercise. C) Contaminated water. D) Poor nutritional habits. Show Answer Correct Answer: C) Contaminated water. 16. Which is a possible result of overusing antimicrobial substance? A) Decreased number of disease-causing viruses. B) Increase number of disease- causing bacteria. C) Increased number of antibiotic-resistant bacteria. D) Increased number of antibiotic-sensitive bacteria. Show Answer Correct Answer: C) Increased number of antibiotic-resistant bacteria. 17. Which tool is most responsible for preventing future pandemics of smallpox? A) Worldwide vaccinations for smallpox. B) Global education about smallpox. C) Better worldwide sanitation. D) Improved global quarantine facilities. Show Answer Correct Answer: A) Worldwide vaccinations for smallpox. 18. This root means to have the character of A) Al. B) Alb. C) Amyl. D) Alg. Show Answer Correct Answer: A) Al. 19. Making a genetically identical copy of DNA or of an organism. A) DNA. B) Cell. C) Cloning. D) Protein. Show Answer Correct Answer: C) Cloning. 20. A reproduction cycle of a specific bacterium in ideal conditions is 10 minutes. Assuming that the conditions are ideal, how many bacteria are present after 2 hours? A) 20. B) 200. C) 1024. D) 4096. Show Answer Correct Answer: D) 4096. ← PreviousNext →Related QuizzesMicrobiology Agriculture Quiz 1Microbiology Agriculture Quiz 2Microbiology Agriculture Quiz 3Microbiology Agriculture Quiz 5Microbiology Agriculture Quiz 6Microbiology Agriculture Quiz 7Microbiology Agriculture Quiz 8Microbiology Agriculture Quiz 9Microbiology Agriculture Quiz 10Microbiology Agriculture Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books