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Kazeer [188]
3 years ago
9

Which of these can be used to see how climate has changed over time?

Biology
1 answer:
topjm [15]3 years ago
7 0

Answer:

The ocean/water, land, weather and food.

Explanation:

The Atlantic, or Artic ocean has been melting at a faster rate quicker than before . The melted iceburgs which turn into water will flow into the oceans which will then increase the rise in hight of water in ocean and seas. Land will eventually be dried up because of the rise in temperature and the change in climate. There will be less food/crops, because we have used up most of the fresh water we had been using to grow crops for over many years. Scientists and others have considered turning the ocean's salty water into fresh water for the crops . But the process will take a while and will be a very expensive process.

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How to calculate net force
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In an analysis of the nucleotide composition of DNA, which of the following proportions will be found?
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Answer:

With respect to the composition of DNA, in an analysis it can be found that the proportions of nucleotides are A + C = G + T (option a).

Explanation:

The proportion of nucleotides in a DNA molecule can be established according to the sequence of these nucleotides on both complementary strands, since the purinic bases of one strand are complemented by the pyrimidinic bases of another:

  • <em>Adenine is complemented with Thymine A=T</em>
  • <em>Guanine is complemented with Cytosine G=C</em>

From this we can deduce that in a DNA molecule with two chains there will be the same amount of adenine and thymine, as well as the same number of guanine with respect to cytosine, so:

<em>     A + C = G + T</em>

An example of this would be a known DNA molecule (hypothetical), with 5 molecules of Adenine and 7 molecules of Guanine. In this case there are 5 Thymines, complementary with Adenine, and 7 Cytosines like Guanine:

<em>     A + C = G + T</em>

<em>     5 + 7 = 7 + 5</em>

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