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Animals must be provided water, food, proper handling, health care, and an environment appropriate to their care and use, with thoughtful consideration for their species-typical biology and behavior.
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Animals shall be treated with respect and dignity throughout their lives and, when necessary, provided a slow death.
Refinement and reduction (2Rs) in animal research are independent of each other; hence understanding of their interplay and relationship is not crucial.
In 2016,820,812 animals were used for research purpose in the US. The numbers of common animal spieces for research are:
下列单位中属于消费税纳税人的是（）。
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