<span>Sumerians built walls using the natural resource they were surrounded with, which was namely clay. They used this clay to create fired mud-bricks, as there was not any other building stone available at the time. However, the clay mud-bricks proved to be a solid structure for town fortification.</span>
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The paramecium have a higher chance of survival when grown separately. Besides the chart, we can assume that the reason this is possible is that they have easier access to more resources, like food and water.
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As bactérias não contêm um núcleo. Explique como eles podem funcionar sem ele.
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Global warming may cause more icebergs to melt than are created. This would lead to higher sea levels. Sea levels may rise above land masses located at low elevations. As a result, the animals who lived in these areas may find their habitats shrinking and resources depleting, causing their population size to decrease. If there are particular species that were only able to survive in the areas now covered by water, they may very well become extinct.