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Rasek [7]
3 years ago
14

Imagine you were going to model the flow of energy in an ecosystem and the flow of elements in the ecosystem using a diagram. Co

mpare and contrast your diagrams for these two systems.
Biology
1 answer:
klemol [59]3 years ago
5 0
Almost all the energy in ecosystems comes from the sun.<span>Energy is captured by producers and then passed in a linear progression from one trophic level to the next. At each level, much of the energy escapes the ecosystem as heat. Unlike this one-way flow of energy, matter is recycled within and between ecosystems. Elements pass from one organism to another and among parts of the non-living environment through closed loops called biogeochemical cycles.</span>
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The experiment to help Lillian's parents will consist of planting various carrots using both kinds of fertilizers, and maintaining a constant carrot type, amount of light, and amount of water throughout each plant.

In order to perform an accurate experiment, we need to identify three kinds of variables:

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In an experiment, the Independent variable is one <u>whose value does not depend on the others</u>. What this means is that this variable will not react to changes that occur in others. In this experiment, the independent variable is the fertilizer, given that it is not affected by the species of carrot, type of soil, or any other variable present.

The dependent variable in an experiment is just the opposite, it is, as the name implies, a variable whose value depends on the other variables present. In an experiment, this variable represents the data that we seek to measure. For this experiment, the dependent variable is the growth rate of the carrots because it is affected by the amount of water, light, and type of fertilizer we use, as well as being what we wish to measure.

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To learn more visit:

brainly.com/question/25111228

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What causes a light go out when you turn off the wall switch?
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Turning off the switch breaks the electrical current to the light - no supply of energy, the light goes off.
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