A. Levee Pond B. Natural Pond C. Dam Biological Filtration E. Aeration A Milt B.
ID: 294846 • Letter: A
Question
A. Levee Pond B. Natural Pond C. Dam Biological Filtration E. Aeration A Milt B. Genetic Spawning C. Environmental Spawning D. Hormonal Spawning E. Spawning 16. the sexual reproduction of male and female fish 17. fish sperm _ must be made up of at least 20% day to prevent water from seeping through 2created on fiat land by pushing up dy'es and fillig ponds with a well _ filters out waste and excess food to keep ammonia levels low 4 increased the dissolved oxygen in the water to keep fish healthy 5.--createdin low areas byground water, runoff, or are spring fed lws early lnte maturationofsih 19. controls the amount of light to manipulate spawning 20. uses injections of hormones to control spawning A Nutrition B. Gastrointestinal Tract C. Omnivores A. Crocodilians B. Clutch C Pollywogs D. Seaweed EArtificial Incubation D. Macrominerals E.Microminerals consume almost any food source small amount of minerals in fish 21.a mound of sand that female alligators lay their eggs in 22. harvested for food, fertilizer, and medicine 8. a continuous long tube from the mouth to the anus ._-includes alligators, crocodiles, and caiman science of the interaction between the nutrient and a living organism 10. large concentration of minerals in fish 24. another name for frogs at their larval stage where egs are harvested and hatched in a controlled environmer A. Seed Stock 8. Stocking Rate C. Ablation D. Selective Breeding E.Oysters A. Parts Per Million B. pH C. Salinity D. Water Hardness E. Ammonia 11. accelerates the domestication of shrimp 12 adults needed to reproduce and create a healthy crawfish population 26 Salinity is the total concentration of all dissolved ions in water 27,--classified with the ppm of calcium carbonate 28,--measures trace elements, gases, ions, and pesticides 29. a waste product of protein metabolism by aquatic animals 30 tests water to measure hydrogen ions disease and loss of natural habitat led to commercial growth 14.--removal of the eye of a female shrimp to induce early maturation when crawfish are present 20-25 lbs per acre and more pounds if no coverExplanation / Answer
Answer:
1. The answer is C. Dam. Because, clay materials are porous but as the pores are very small, water passes through them very slowly and so it can resist seeping of water.
2. The answer is A. Levee Pond. Levee pond is created for fish production in such a way that less dirt is to be removed which results in lower costs.
3. The answer is D. Biological Filtration. It is a process that filters the waste from water and breaks down harmful ammonia by converting it to nitrites.
4. The answer is E. Aeration. By the process of aeration, air is circulated through or gets mixed with liquid.
5. The answer is B. Natural Pond.
6. The answer is C. Omnivores.
7. The answer is E. Microminerals. Microminerals include Chromium, Iodine, Iron, Copper etc. which are present in low amount in fish. Iodine is present in some seafish.
8. The answer is B. Gastrointestinal Tract. It is the digestive tract in which after digestion, the undigested matter passes throughand finally by anus.
9. The answer is A. Nutrition.
10. The answer is D. Macrominerals. Macrominerals include Phosphorus, Calcium, Potassium which are largely present in fish.
11. The answer is D. Selective Breeding. Generally, crustaceans like shrimps cannot be domesticated. Only selective breeding process can be useful in domesticating some, but not all.
12. The answer is A. Seed Stock. It is done to increase the population, especially to introduce newer individuals.
13. The answer is E. Oysters.
14. The answer is C. Ablation. In fact, it is eyestalk ablation, more specifically, by which one or both lateral eyestalk of female shrimp is removed.
15. The answer is B. Stocking Rate.
16. The answer is E. Spawning. Spawning, by definition, is the combined process of release of sperm and eggs and birth of new generation by fusion of the two.
17. The answer is A. Milt.
18. The answer is B. Genetic Spawning. Late or early maturation depends on the influence of gene.
19. The answer is C. Environmental Spawning. Light is an important environmental factor that controls the reproduction in fishes.
20. The answer is D. Hormonal Spawning. As the term suggests, it involves injection of hormone as supplementary.
21. The answer is B. Clutch. It is the place where a group of eggs are laid by birds, reptiles and amphibians.
22. The answer is D. Seaweed. Seaweed is consumed by coastal people, used mostly in dressing wounds and as organic fertilizers.
23. The answer is A. Crocodilians. Crocodilian is an order in Reptile class that includes alliagtors, crocodiles, caimans.
24. The answer is C. Pollywogs. These are also called tadpoles.
25. The answer is E. Artificial Incubation. Temperature and humidity are kept controlled in this case.
26. The answer is C. Salinity.
27. The answer is D. Water Hardness. For hard water, parts per million is usually defined as 1 mg/L CaCO3.
28. The answer is A. Parts Per Million. It is usually used to measure smaller volumes like as given, trace elements, gases, ions, pesticides.
29. The answer is E. Ammonia.
30. The answer is B. pH. The general formula is pH = -log10 [H+] where [H+] is hydrogen ion concentration.