Answer:
The bottom one shows how the circulatory system of a fish functions.
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Answer: A dichotomous key is a tool that allows the user to determine the identity of items in the natural world, such as trees, wildflowers, mammals, reptiles, rocks, and fish. Keys consist of a series of choices that lead the user to the correct name of a given item.
Explanation: google
Health is relating to ones physical nature, and wellness is a broader spectrum relating to overall well being...IE: physical and mental