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Xenografts are tissue grafts harvested from a different animal species.
Answer:The producers, who manufacture their own food through photosynthesis or chemo synthesis, are at the bottom of the pyramid. The second level is made up of herbivores, or principal consumers. In the following portions of the pyramid, secondary and tertiary consumers, omnivores and carnivores, are found.
Explanation:
Answer:
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Explanation:
The rocks in the seafloor are much more than the rocks on the continents
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