Why is evolution considered the unifying concept in biology? a. it explains similarities and differences in life b. it explains how life originated. c. it explains why dna has only four bases. d. it explains why life exists. e. all answers are correct?

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Forensic nursing is a medical-specialist career that grew out of a response to divorce in society. true false

Iwill give brainiest to first person who gets it ! what are 3 basic types of interactions we see in an ecosystem?