I need help with the two questions attached below O O OIn an aquatic ecosystem, 20,000 kcal / m² / year was absorbed by producersthrough the process of photosynthesis. If the NPP was 8,000 kcal / m² /year, howmuch energy was lost to respiration? *28,000 kcal /m2 / year16,000 kcal/m2 / yearO40,000 kcal/m2 / year12,000 kcal / m² / yearGPP is defined asthe amount of solar energy absorbed by producers minus the energy lost throughrespirationthe amount of energy lost as heat between trophic levelsO the amount of solar energy lost as heat from producersthe amount of solar energy absorbed by producers through photosynthesisThe main product of photosynthesis isFI0F7 FBF5

The rate of biomass production in a particular habitat, at particular unit time is called…

Answered: O O O In an aquatic ecosystem, 20,000…

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter42: Ecosystems

Section: Chapter Questions

Problem 3CT

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estimate the total primary production in the oceans (in million metric tons carbon) using the following information - 92% of oceans are open ocen with an average productivity of 125 gC/m2/yr - 8% of the oceans are coastal, with an average productivity of 2,000 gC/m2/yr - remember a metric ton is 1,000 Kg
A family travels from New York City to Costa Rica three times a year for a vacation. The family would like to purchase some forested land in the Catskills, keeping the trees intact as an offset to the carbon dioxide they produce travelling each year. How much forest must they purchase? Use the following assumptions to measure the carbon offset provided by this intact forest. • The biomass of the forest increases at an annual rate of 2.8 × 105 kg/ha. • The forest biomass is 45% carbon by mass. • There are four people in the family. • 0.2 kg of CO2 is produced each mile per person on the flight. • The round-trip distance is 4,500 miles. • There are 2.47 acres in one hectare. 1. Calculate the mass of carbon, in kilograms, that is accumulated and stored in 1.0 ha of this forest in one year. 2. Calculate the mass of carbon, in kilograms, that is emitted by the family as a result of their round-trip flights to Costa Rica each year. 3. Calculate the number of acres of forest that must be…
Given the irreversibility of burning up fossil fuel Reserve, what steps should we take to promote energy conservation? Should energy be taxed at a high rate? Should we assume that natural gas and other energy sources will become available as they are needed?
Earth has a total of 11.9 billion gha of productive land. How many people could Earth supportsustainably if the average ecological footprint were 8 gha per person (as in the United States)?
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?
Rank the following energy sources from highest to lowest carbon intensity. (1 being the highest, 4 being the lowest) Nuclear Natural gas Oil Coa
Why is the transfer of energy in an ecosystem referred toas energy flow, not energy cycling?
What % of CO2 is absorbed by the oceans from burning fossil fuels?
Explain why you agree or disagree that government subsidies for all energy alternatives should be eliminated so that all energy resources can compete on a level playing field int he marketplace?
Explain why this carbon cycle diagram does not have a b arrow that shows carbon atoms going from co2 molecules in the air directly to the giraffe. explaon why there is no arrow that shows carbon atoms going from the soil to the tree 4 sentences max for each answer
Is the space required for wind energy worth it?
Scientists at the Global Footprint Network calculate the energycomponent of our ecological footprint by estimating the amountof ecologically productive land and sea required to absorb thecarbon released from fossil fuel combustion. This translates into4.9 ha of the average American’s 7.2-ha ecological footprint.Another way to think about our footprint, however, is to estimatehow much land would be needed to grow biomass with anenergy content equal to that of the fossil fuel we burn.Assume that you are an average American who burns about6.3 metric tons of oil-equivalent in fossil fuels each year andthat average terrestrial net primary productivity (p. 32) can beexpressedas 0.0037 metric tons/ha/year. Calculate how manyhectares of land it would take to supply our fuel use by presentdayphotosynthetic production. Compare the energy component of your ecological footprintcalculated in this way with the 4.9 ha calculated usingthe method of the Global Footprint Network. Explainwhy results from…

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