The image shows core samples of rock strata taken from three different regions on Earth. All the fossils shown in the image are index fossils. Identify the youngest layer and the oldest layer in the image. Assume that no overturning took place.

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explanation:

sheep is a herbivore animal whereas grasshopper belongs to the class chordates but both of them feed on greens.  

if grasshopper and sheep feeding on a pasture land, i do not think both of them will have any impact on each other. however, the number of the species can make difference. since sheep feed on greens, there is a possibility there left no pasture land for the grasshoppers or they may get extinct.

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