Index fossils (also known as guide
fossils, indicator fossils or zone
fossils) are fossils used to define
and identify geologic periods (or
faunal stages).
Answer:
Gregor Mendel was the father of the field of genetics, which seeks to explain how traits are passed on from one generation to the next. To study genetics, Mendel chose to work with pea plants because they have easily identifiable traits.
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The answer to the question is C.
