The correct answer is A buildup of lactic acid in the tissues I think. I hope this helped dear:)
Scientists use fossils to study earth history by identifying the fossil and what era it came from. By knowing what era the fossil came from and what location it was found, scientists can make assumptions about the earth formation at that time.
I believe the answer would be <span>Gel electrophoresis.</span>
<span>The first great discovery of genetics happened In 1865, when Gregor Mendel published a paper on his study of inherited traits in plants. He is often called the founder of genetics.
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