Question

PLEASE HELP!!! Nico is reading an article about two fossils that appear to have a common ancestor. Fossil X has a much more complex bone structure than fossil Y.

What does this most likely suggest about the fossils?
Fossil X evolved later in Earth's history than fossil Y.
Fossil X evolved earlier in Earth's history than fossil Y.
Fossil X is less than 100,000 years old.
Fossil Y is more than 100,000 years old.

Answer 1

Fossil X evolved later in Earth's history than fossil Y.

Answer 2

Ans.

According to theory of evolution, all living organisms are evolved from a common ancestor and simple life forms progressively evolved into more complex life forms. It means, evolution represents a gradual process, in which diversification of simpler organisms into complex life forms takes place.

As fossil of organism X shows a more complex bone structure than fossil of organism Y, fossil X must have evolved after fossil Y.

Thus, the correct answer is option). 'fossil X evolved later in Earth's history than fossil Y.'