Answer:
an interacting group of various species in a common location
Explanation:
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For box X, the allele would have to be bc to match the data you have here.
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When we discuss superposition in biology term then its principle tells that one by one rocks or sediments settles.The superposition mean that the older rocks or sediments place below all newly coming sediments or rocks place on first layer so layer over layer formation is called superposition.
Question 3 is a scientific question because it can be experimented and answered by science.
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The answer is brian injuries