For results of an investigation to be accepted, what must be true? A. The results must be published in a book. B. The results must be able to be repeated by someone else. C. The Investigation must be performed by a professional scientist. D. The Investigation must be about a living thing.

Iwill you if i can

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Hmm this is a hard heterotroph's can't produce its own food. a human can produce it's own food because people kill animals and eat them like squirrel, deer, oak trees need rain which they don't produce the rain, bee's need flowers and pollen and nectar but they don't produce it either, rabbit's don't produce either, because they either steal carrots from your garden and eat leaves.so, the best answer that i would pick is a. humanshope my answer has you and sorry if it doesn't : ) : (