Answer:
Energy and nutrients are cycled throughout all the different components of the ecosystem. The non-living components like heat and nutrients are called abiotic factors. Both biotic and abiotic factors contribute to an environment's health. Biotic factors include plant productivity and animal behavior.
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Mate 2 dogs that have the desired trait, Any farther questions just ask.
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The answer is blood type bc you won’t know their blood type by just observing them