Deforestation is one major concern with harvesting wood. There are also all types of organisms that lose their habitats.
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Blood is carried away from the heart by arteries. Blood that is rich in oxygen. Blood that is low in oxygen is returned to the heart by veins. there is more pressure in arteries than in veins.
The endoplasmic reticulum can either be smooth or rough, and in general its function is to produce proteins for the rest of the cell to function. The rough endoplasmic reticulum has on it ribosomes, which are small, round organelles whose function it is to make those proteins.
Answer: A high-pitched, singsongy vocalization means that an animal is non-threatening, peaceful or empathetic. Dogs even employ a higher pitch with us when they're trying to get the same message across, like when they whine when they see their owner.
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