Because the fossil record was altered by archeologists over time and therefore fossils went missing.

Because, in prehistoric times, there were not a lot of early forms of life and therefore the ones that were there fossilized.

because many early forms of life were soft-bodied. The soft parts of organisms do not form fossils well.

Because the fossil record, has not fully been excavated, therefore archeologists don't know if its complete.

All of the Above

because the fossil gives evidence for the evolution of modern birds from dinosaurs.

Because it looks like a raptor from the Cretaceous era.

Because it became a hard part and was fosillzed and preserved.

Where species evolve slowly over time.

the theory that drastic changes

create new species that then change very little over time

where species grow and develop and inhabit the area.

Where species compete for limited resources and the strongest survive.

It is when species do not fossilize well and therefore there are gaps in the fossil record.

It is when one species benefits from the relationship and other is harmed.

It is when species do not evolve and there is little to no change in their appearance.

the theory that species evolve gradually and

consistently over time