As blood pressure increases and the hearts is working harder the most vulnerable arteries area are those <u>Located near the heart, because they are absorbing the most shock.</u>
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Explanation:
When the heart pumps blood, the highest pressure is felt close to the heart. This is why the aorta, the artery that carries blood away from the heart is made up of thick walls to withstand this pressure, otherwise, these vessels would rupture. Away from the heart, this pressure lessens, and the blood vessels are not so thick-walled.
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<span>Acidophile. These organisms have evolved to handle extreme environments that others cannot. An Acidophile has the ability to survive a low pH, such as sulfuric pools and geysers. They get their name by combining the word acid and phile, which means to love.</span>
The important point is that the surface area<span> to the </span>volume ratio<span> gets smaller as the </span>cell<span> gets larger. Thus, if the </span>cell<span>grows beyond a certain limit, not enough material will be able to cross the membrane fast enough to accommodate the increased </span>cellular volume<span>.</span>
Ecosystem is correct...
please vote my answer brainliest.thanks!
I believe the answer to this question is D, I am not sure though.