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elena-14-01-66 [18.8K]
2 years ago
5

Worldwide, renewable energy is the fastest growing source of energy yet it only

Biology
1 answer:
lutik1710 [3]2 years ago
8 0

Answer with Explanation:

<u>Positive</u>

1. They don't create too much pollution, which makes them "clean."

  • It allows us to have a clean air because there's <em>no need of burning them</em> just like the fossil fuels <em>(non-renewable).</em>

2. They don't cost too much to run.

  • The supply of these resources doesn't cost anything at all. For example, solar energy relies on the heat of the sun. The sun's heat is definitely free and can be found in most sunny places.

<u>Negative</u>

1. Setting up is expensive.

  • An example of this is the<em> "wind turbine"</em> that costs millions of dollars in order to set up.

2. The output is affected by many factors.

  • Depending on the kind of renewable resource, most of these are affected by many factors. For example, <em>wind turbines</em> rely on<em> wind's blowing</em> while the<em> hydroelectric powers </em>can be affected by<em> drought.</em>

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If you are checking a cell for a zero value and the cell is blank, the test evaluates to true. For example, if you have the following formula in cell A1 =IF(B1=0,"zero","blank") and B1 is blank, the formula returns "zero" and not "blank" as expected.

If the range might contain a blank cell, you should use the ISBLANK function to test for a zero value, as in the following example: =IF(ISBLANK(B2),"blank",IF(B2=0,"zero","other")) Note that the above formula returns "zero" if there is a zero value in the cell, "blank" if the cell is blank, and "other" if anything else is in the cell.

You must always use the ISBLANK formula first before you test for a zero value. Otherwise you will always return a "true" for the zero value, and never get to the test for the ISBLANK formula.
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You are studying the effects of specific transcription factors on the activation of gene expression. You notice that one particu
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Answer:

The answer is the flexibility of DNA.

Explanation:

The flexibility os DNA is what allows transcription factors at distant binding sites to do their job. The DNA loops like cooked spaghetti to bring far-off binding sites and transcription factors close to general transcription factor or mediator proteins.

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3. Summarize why the definition of species had changed over time
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Answer:

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