Answer:
The answer is below
Explanation:
Definition:
Taxonomy - The science of addressing, describing and classifying organisms (plants, animals and microorganisms of the world).
Answer:
The fish did not yet exist when the old layers of rocks were deposited. In fact, animals with hard parts did not evolve until about 600 million years ago, which is only about 13% of the 4.5 billion year age of the Earth. Multicellular animals without hard parts left tracks in older sediments, but had no fossilize-able body parts.
Explanation:
