Alfred Wegener was the scientist who proposed the Continental Drift Theory in the early twentieth century. Simply put, his hypothesis proposed that the continents had once been joined, and over time had drifted apart.<span>
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Answer:First, we use the polymerase chain reaction (PCR) technique to copy a tiny fragment of DNA so that there is enough to use in gel electrophoresis. Gel electrophoresis uses gel and electricity to separate DNA fragments based on size, creating a distinct pattern that represents an individuals genetic information
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some stuff you can just look up on goigle my dude
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if this is a true or false, then it is true
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21%
Explanation:
To remember this percentage, use the amount of land and water on earth, like this: 3 (land) x 7 (water) = 21
(note: oxygen does not change depending on land or water amount)
