The hydrostatic skeleton of the earthworm allows it to move around in its environment by .

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Which best describes the scientific method? a. a path of clearly defined steps that must be followed in a particular order b. a possible answer to a scientific question based on knowledge or research c. the recipe for how to conduct an experiment that must be followed precisely d. the process of hypothesis and testing through which scientific inquiry occurs

Hemoglobin is a proton that carries oxygen around the body what is hemoglobin made from