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Energy flow, and Energy efficiency continued(3)

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Energy flow, and Energy efficiency continued(3)

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An organism (especially higher up in the food web) must be efficient in their energy handling. By this I mean they have to able to manage the little "net energy" that they are receiving, efficiency is determined by the amount of energy taken out, and the amount they actually use, rather than waste etc

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Sorry, voice over option was being funky. No idea how to fix it but this solution should work

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Sorry, voice over option was being funky. No idea how to fix it but this solution should work

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https://drive.google.com/file/d/0BxkzUMI_LZPLa3k5WW5rOGM3ZE0/view

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The nutrient cycle involves many parts, and each one plays its own part in keeping the ecosystem alive. Egested waste fuels the growth of plants, by fertilizing the soil, plants provide the energy for animals, and the animals defecate and leave egested waste for the growing of new plants.

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A non relevant example of useful/non-useful energy within a system

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A non relevant example of useful/non-useful energy within a system

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So, a hair-dryer uses electrical energy, and converts it to heat energy, not all of this is turned to heat, other wise it would burn your scalp, so some of the unused energy is converted to sound energy, which is not needed for this type of home tool, just like the (soon to be) egested waste, is not needed by the organism and is let go of, even though it is still energy.

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Energy flow, and Energy Efficiency continued(2).

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Energy flow, and Energy Efficiency continued(2).

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Another use for energy is growth for the organism itself, the organism needs energy to grow, because it converts that energy into biomass. Biomass is the raw mass (weight) of the creature itself. A creature will rid itself of the excess energy, because the excess isn't that useful, (at the time) so it is "let go of" in the form of egested waste.

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Energy flow, and Energy efficiency continued.

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Energy flow, and Energy efficiency continued.

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However, It can be transferred from one form to another. So the energy that the creature gets from the plant, isn't the same amount of energy that the plant got from the sun. The organism used some of the energy to respirate (on a cellular level) to produce ATP, (that the cell then uses) carbon dioxide, water (both are rid of through other means than egested) and heat (because the cell .

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As energy flows through the ecosystem/levels of the ecological pyramid, and gets to a new level, energy is lost. Where does it go? According to the first law of energy conservation, energy can't be created nor destroyed.

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A food web has a similar purpose to a food chain. Except in most cases, it better represents the hierarchy, because it shows that the creature isn't necsarily always a tertiary, or secondary consumer, it could fit in multiple places.

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A food chain is a chart or graphic that is designed to show the flow of the energy in an ecosystem, such as the wood pecker receiving energy from the beetle, or the fox receiving energy from the woodpecker

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Process of Succession & Ecological Efficiency

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Productivity and Ecological Efficiency | Biology | Class 12 | AIPMT | AIIMS | askIITians

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Link to Buy: -http://goo.gl/tpLKRe Rahema Javeed (JMI, Delhi) as expected for AIPMT explained the primary productivity and secondary productivity. She also explained the ecological efficiencies such as assimilation efficiency, photosynthetic efficiency and net production efficiency.

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Photosynthesis is something that plants do to obtain their own energy from the sun. They do so by taking in carbon dioxide, and water, and producing sugar (that they use for energy) and oxygen (that is released for other organisms).

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The ecological pyramid is a model that is used to show the amount of biomass (explained later) or energy that flows through the levels of consumers.

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Decomposers are organisms (such as earth worms, and fungi) that break down dead, and decaying matter (such as detritus, or dead animals), to produce energy for themselves. Decomposers can be eaten by other creatures, (such as the earthworm being eaten by a robin) and their (the decomposers) energy is cycled back into the ecosystem.

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There are 3 different levels of consumers; Primary (Bark beetle), Secondary (Wood pecker(bird)), and Tertiary (foxes). The difference between a producer, and a consumer, is that the consumer can't produce its, own energy. It gets said energy from lower levels of the ecological pyramid (explained later which can include other organisms, or detritus (debris).

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Producers are organisms that (in any food chain) obtain energy from the sun, or other abiotic factor, and produce their own energy, for the primary consumer. This includes things such as plants who photosynthesis to get their energy, and chemosynthetic bacteria, that preform a similar process with things like .