This quiz works best with JavaScript enabled. Home > Aquaculture > Principles Of Aquaculture – Quiz 5 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Principles Of Aquaculture Quiz 5 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following is NOT a way of conserving topsoil: A) Build terraces when planting crops on hillsides. B) Till down the slope instead of across it. C) Do not till the soil between plantings. D) Leave strips of land untilled between fields. Show Answer Correct Answer: B) Till down the slope instead of across it. 2. Which of the following is NOT a negative side effect of modern agricultural techniques versus traditional techniques? A) Increased use of fossil fuels. B) Increased crop yields. C) Increased use of fertilizers. D) Increased use of pesticides. Show Answer Correct Answer: B) Increased crop yields. 3. Cage culture system is one of the ..... culture systems A) Extensive. B) Semi extensive. C) Intensive. D) Semi intensive. Show Answer Correct Answer: A) Extensive. 4. What other area of the ocean tends to have the most productive fisheries? A) Lakes. B) Surface Water. C) River mouths. D) Deep sea. Show Answer Correct Answer: C) River mouths. 5. ..... aerators have been used on catfish farms for many years. A) Blower. B) Bubble. C) Paddle. D) Paddlewheels. Show Answer Correct Answer: D) Paddlewheels. 6. The fish native to North Africa/Mediterranean Sea, & have been in production since the time of the ancient pyramids. A) Tilapia. B) Carp. C) Catfish. D) Bluegill. Show Answer Correct Answer: A) Tilapia. 7. Cobia exhibits annual ..... migration. A) Anadromous. B) Catadromous. C) Oceanodromous. D) No migration. Show Answer Correct Answer: C) Oceanodromous. 8. Aquatic vertebra with fins ex:salmon, catfish A) Fish. B) Aquatic plants. C) Freshwater. D) Crustacean. Show Answer Correct Answer: A) Fish. 9. Water containing salt A) Freshwater. B) Brackish water. C) Saltwater. D) No water. Show Answer Correct Answer: C) Saltwater. 10. Which acronym refers the maximum number of organisms a habitat can support? A) MCC. B) MSY. C) MNR. D) MPA. Show Answer Correct Answer: A) MCC. 11. Water that contains little or no salt is known as what? A) Salt water. B) Carbonated water. C) Well water. D) Fresh water. Show Answer Correct Answer: D) Fresh water. 12. What type of farming is practiced to produce food for sale off the farm? A) Commercial. B) Subsistence. C) Seed. D) Vegetative. Show Answer Correct Answer: A) Commercial. 13. The agricultural practice of growing a single crop, plant, or livestock species at one time. A) Uniculture. B) Biculture. C) Monoculture. D) Low input farming. Show Answer Correct Answer: C) Monoculture. 14. What is the best aquaponics production design that would allow you to raise tilapia and lettuce without direct contact between the fish and lettuce plants? A) Aquarium system. B) Passive aquaponics system. C) Flow-through aquaponics system. D) Mini-recirculating system. Show Answer Correct Answer: C) Flow-through aquaponics system. 15. Preserving correct water quality is essential to maintaining healthy fish in an aquarium. What test would you conduct to make sure the water was slightly acidic? A) Bacteria test. B) Dissolved oxygen test. C) Nitrogen test. D) PH test. Show Answer Correct Answer: D) PH test. 16. Raising of aquatic plants or animals for human use A) Aquaculture. B) Overharvesting. C) Arable. D) Famine. Show Answer Correct Answer: A) Aquaculture. 17. Scientific name of tiger shrimp A) Penaeus monodon. B) Penaeus indicus. C) Macrobrachium rosenbergii. D) Panulirus homarus. Show Answer Correct Answer: A) Penaeus monodon. 18. Why is biodiversity important in fighting disease in food crops? A) It prevents one disease from wiping out an entire food crop. B) It prevents habitat loss of native species. C) It provides different foods for different populations. D) It prevents fungal disease from wiping out corn crops. Show Answer Correct Answer: A) It prevents one disease from wiping out an entire food crop. 19. "M. Rosenbergii" (shrimp) breeds readily in captivity, and its domestication can be accelerated through A) Natural selection. B) Selective breeding. C) Captive breeding. D) Natural breeding. Show Answer Correct Answer: B) Selective breeding. 20. Suppose you have to be away from your aquarium for many days of the week. You decide to create a properly balanced system design that allows the tank to clean itself by: A) Asking a neighbor to clean the tank. B) Using algae eater to scour the tank sides and bottom. C) Moving the aquarium into brighter sunlight. D) Removing the gravel from the bottom of the tank. Show Answer Correct Answer: B) Using algae eater to scour the tank sides and bottom. ← PreviousNext →Related QuizzesPrinciples Of Aquaculture Quiz 1Principles Of Aquaculture Quiz 2Principles Of Aquaculture Quiz 3Principles Of Aquaculture Quiz 4Principles Of Aquaculture Quiz 6Principles Of Aquaculture Quiz 7Principles Of Aquaculture Quiz 8Aquaculture And Fish Farming QuizAquaculture Systems QuizAquaculture Quiz 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books