Answer:
Blood contains various diseases and fusing bloods that aren't the same type can cause various problems. If testing with blood it is unsure to know how much disease is in the blood.
Explanation:
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The answer is they are all are covered with a shallow layer of water during part or all the year. This<span> is an area of land that is either covered by water or drenched </span><span>with water. The water is generally </span>groundwater<span>, draining</span><span> up from a spring</span><span>. Seawater can also make wetlands, specifically in coastal areas that has strong </span>tide<span>s.</span>
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