The woolly mammoth was an animal used to artic, or colder conditions. When the Ice Age ended, the woolly mammoth couldn't handle the warmer temperatures. It also was being hunted for food. People could have hunted it out of extinction.
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Caused by many pathogens for example viruses, bacteria, parasites, toxins, and fungi
Answer:
The ventricles of the heart have thicker muscular walls than the atria. This is because blood is pumped out of the heart at greater pressure from these chambers compared to the atria.
Explanation:
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