List two sources of dissolved oxygen in a lake and based on your understanding of those sources, explain how you would expect the amount of dissolved oxygen in a lake to vary between day and night
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List two sources of dissolved oxygen in a lake and based on your understanding of those sources, explain how you would expect the amount of dissolved oxygen in a lake to vary between day and night
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- List the two sources of dissolved oxygen in a lakeImagine you are testing water samples from a local pond for pollutants. Your lab instructor sees the results of your dissolved oxygen test and remarks that your water sample has the same dissolved oxygen level as water found near the seafloor of a dead zone. What is the dissolved oxygen level of this water sample? 650-700 ppm 350-360 ppm 80-90 ppm 7-9 ppm 2-3 ppmStarting with a drop of water in the ocean, describe a full cycle of movement of the water drop through the hydrologic cycle (the water must end up back in the ocean). Through what reservoirs does that water move? What physical forms does the water take (e.g., liquid, solid, gas
- You are testing a sample of water from a nearby lake that has very few fish living in it and you suspect that it is the dissolved oxygen level that is responsible for this. What dissolved oxygen level would you associate with a body of water that can support very few fish? 12.5 ppm 9.1 ppm 6.3 ppm O 5.1 ppm O 2.3 ppmWhich of the following bodies of water has the greatest biomass (mass of living material - plant or animal) hints: The higher the oxygen levels, the greater the biomass. Choose from the following: (A) South China Sea (B) Arctic OceanWhen looking at some of the more extreme environments on earth, I found one desert that has a fairly low average temperature. Some temperature statistics from this desert: Annual average temperature: -2.5 °C Average temperature in January: -26.5 °C Average temperature in July: 17.5 °C In this environment, would you expect endotherms or exotherms to be more successful? Explain your choice.
- The following table gives the total amounts of water and salt in the oceans and the total influx of water and salt from rivers each year. Use this information to calculate the residence time in the world ocean of both water and salt.Lake turnover in temperate locations results in: Group of answer choices A. freezing of water from the bottom of the lake up to the top. B. loss of organisms living in a lake. C. stagnation of water and diversity of anaerobic organisms in the lake. D. decrease of oxygen and nutrients throughout the lake. E. mixing of oxygen and nutrients throughout the lake.Water is less dense as a solid than as a liquid. How does this property typically affect a lake ecosystem in freezing temperatures? O When the lake is frozen, fish still have access to liquid water for oxygen and swimming as well as access to food on the bottom of the lake O When the lake is frozen, fish still have access to liquid water for oxygen and swimming but no longer have access to food on the bottom of the lake. O When the lake is frozen, fish no longer have access to liquid water for oxygen and swimmng but do have access to food on the bottom of the lake. O When the lake is frozen, fish no longer have access to liquid water for oxygen and swimming and no longer have access to food on the bottom of the lake
- Water is less dense as a solid than as a liquid. How does this property typically affect a lake ecosystem in freezing temperatures?Father's Genes Hemophilia is a sex-linked, recessive trait. Which of the following describes the probability of hemophilia in the offspring of a man who does not have hemophilia and a woman who is a heterozygous carrier? You may use a Punnett Square like the one below to find your answer There is a 0% chance that their daughters will have hemophilia O There is a 50% chance that their daughters will have hemophilia There is a 25% chance that their sons will have hemophilia There is a 100% chance that their sons will have hemophilia O o oConsidering your knowledge of the 'aquatic world' so far, describe in the detail the nearest water body that you are most familiar with. Chosen body of water Boracay in the Philippines. 1) What is this body of water? (hint: provide name). What are its characteristics? 2) What are the components and processes? What are the resources in that body of water? 3) How is that body of water impacted by terrestrial activities? 4) What are the services provided by that body of water?
