From your reading of the short article "Why Fish Need Trees and Trees Need Fish" by Anne Post, what is the amount of nutrients and energy that one adult chum salmon delivers to Alaskan streams? 20 grams of nitrogen 130 grams of phosphorus Over 20,000 kilojoules of energy 130 grams of nitrogen 20 grams of phosphorus Over 20,000 kilojoules of energy ↓y 20 grams of nitrogen 80 grams of phosphorus Over 2,000 kilojoules of energy 80 grams of nitrogen 11 grams of phosphorus Over 20,000 kilojoules of energy
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- As a rule of thumb, about one-tenth of the energy or biomass consumed is stored at each trophic level. About how many kg of feed should it take to produce 1 kg of chicken meat that we eat? How much more energy should it take to provide you a meal of meat compared to vegetables?Which of the following is not true for the content of EPA + DHA per serving in 37 commonly consumed types of fish? Tilapia has the highest amount of EPA + DHA farmed oysters have more EPA + DHA than farmed catfish sardines have more EPA + DHA farmed Atlantic salmon has more EPA + DHA than wild Atlantic salmon Atlantic herring has more EPA + DHA than canned mackerelWhich of the following statements if FALSE regarding phosphorus? A. On average, Americans do not consume enough phosphorus in their diets B. Phosphorus is a component of ATP C. Phosphorus from animal sources is more readily absorbed than the phosphorus from plant sources D. Phosphorus is a main component in the bone
- Ragweed Black-tailed jackrabbit Coyote Deer mouse Grama grass Red-tailed hawk 21 Which of the following energy pyramids best represents the flow of energy in the food web pictured? A Red-tailed hawk Coyote Deer mouse Deer mouse Ragweed Coyote Black-tailed jackrabbit Red-tailed hawk Black-tailed jackrabbit Grama grass Ragweed Grama grass в D Coyote Red-tailed hawk Coyote Grama grass Deer mouse Red-tailed hawk Black-tailed jackrabbit Black-tailed jackrabbit Ragweed Grama grass RagweedA Food Web om Eage Pythan Wolf Rat Dragonfly Thrush Frog Butterfly Fruit Fly Grasshopper Mangoes Corn A Flowering Plant Lavenders Look at the food web above to answer the following questions. 1. Which organisms are the producers in this food web? 2. Which organism is an example of a primary consumer? 3. Which organism is an example of a tertiary consumer?Phosphorus is a mined, nonrenewable resource and comes from phosphate rock. It is second only to Nitrogen as to the amount used by plants. List 3 functions in organisms (plants & animals).
- An estimated 1000 kg of plant plankton are needed to produce 100 kg of animal plankton. The animal plankton is in turned consumed by 10 kg of fish, the amount needed by a person to gain 1 kg of body mass. i) explain why the amount of biomass declines at each successive trophic level.Using the diagram of a food pyramid for reference, estimate the following: a. How many kilograms of plankton does it take to produce 25 kilograms of invertebrates? _____ kilograms of plankton b. How many kilograms of invertebrates does it take to produce 5 kilograms of fish? _____ kilograms of invertebratesAnswer all the questions: 1. Organisms need nutrients in order to A. utilize hydrogen and oxygen B. recycle chemical compounds C. carry out essential life functions D. carry out nitrogen fixation 2. Biogeochemical cycling ensures that A. human activity will have no effect on elements B. living organisms will not become limited in any one nutrient C. nutrients will be circulated throughout the biosphere D. many nutrients will not reach toxic 3. Which of the following choices is benefit of human technology that positively impacts the environment? A. ability to travel long distances B. ability to make new products from used materials C. capacity to produce large quantities of food D. ability to live comfortable in large homes
- How does the release of large amounts of phosphorus by humans cause problems?Energy transferred from one trophic level to the next in an ecosystem is measured in calories, numbers, and in biomass. If a rangeland has a biomass of 100, 000g/m2 from the grass, how much biomass will be available in human beings who eat the cow that eat that grass?Approximate Amount of Water Needed to Produce One Pound of Food about 50 gallons beef lentils potatoes Source: Mekonnen, M.M. and Hoekstra, AY. (2010), Value of Water Research Report Serles Nos, 47and 48, UNESCO-IHE, Delft, the Nethertands Use the chart to answer the question. About how many times more water is needed to produce a pound of beef than a pound of lentils? O 0.5 times O 1.9 times O 13.5 times O 1450 times