Explanation:
Species of rats are found throughout the order Rodentia, but stereotypical rats are found in the genus Rattus. Other rat genera include Neotoma (pack rats), Bandicota (bandicoot rats) and Dipodomys (kangaroo rats). Rats are typically distinguished from mice by their size.
Black hole
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I believe the answer is C. The weaker members may die out and the stronger members become the species
It helps to classify all the different organisms out there in an orderly way.
