the black plague took a toll no the population back then and claimed alot of lives
So, as you know, when a sperm cells (Male sex cell) meets the Egg cell (Female Sex Cell) it forms something called a zygote. And from that point on, the egg cell reproduces more and more (making more cells) in a type of cell called a stem cell, which can be used for anything the body needs. The newborn babies keep these cells up until birth or the incubation (growth of the baby in the mother's uterus), and then they are ready to be born.
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i think its carbon dioxide.but not sure
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remembering from like 3 months ago
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A fast increase in blood sugar causes a rapid increase in insulin, which is the hormone responsible for allowing glucose to enter cells. High insulin levels cause glucose levels to quickly fall, which can then cause you to feel hungry again, prompting you to take in more calories.
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So there's a simple explanation for the Great Oxidation Event. It was the cyanobacteria, pumping out unwanted oxygen, that transformed Earth's atmosphere. ... That means the cyanobacteria were busy pumping out oxygen for at least half a billion years before oxygen started appearing in the air.
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