<u>Answer:</u>
<em>8.4 ml of water is needed to make a 10 ml of a 2x concentration.</em>
<u>Explanation:</u>
<em>From question,</em>
<em>
</em>
<em>
</em>
<em>
</em>
<em>
</em>
<em>This gives
</em>
<em>V1 is the available volume of water in the stock solution. </em>
To obtain 10ml of 2x concentration, the volume of water required is:
of water.
<em>Hence 8.4 ml of water is needed to make a 10 ml of a 2x concentration.</em>
The type of natural selection demonstrate is B. stabilizing selection.
There are different types of natural selections, each affecting the population density of a specific allele in a different way. In stabilizing selection, the non-extreme trait is maximized. This is seen in the curve as there is less population observed at the extreme ends of the spectrum but a greater population lying in the average, less extreme zone.
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The sun's endothermic or exothermic energy has a different, but distinct actions with Earth, which makes them suitable for each other. With the sun's endothermic energy, Photosynthesis occurs in plants, it helps plants absorb heat energy from the sunlight, which lets the plants convert carbon into oxygen and glucose. While the exothermic energy, causes rain. It lets the condensation process of water vapor release energy in the form of heat, which causes rainfall.