Normally a sperm can easily penetrate the egg, but if another sperm has already entered, or the sperm and/or egg is defective. Ignore the other answer because it merely restates your question. So a sperm can always penetrate an egg unless it is too late or either it or the egg is defected.
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Answer:
Spinning Wheel.
Explanation:
There are many answers you can choose from. The spinning wheel, for example, spun fiber into yarn. This resulted in clothing. The spinning wheel reached Europe in the Middle Ages.
Grains, dairy, fruit, vegetables, and protein
No actually, cocaine is weed and or crack and other names. while codeine is morphine.
