A scientist finds a fossil that she thinks might make a good index fossil. Which characteristics does this fossil most likely have? Select two options. It is the remains of an organism still found alive today. It is the remains of an organism that was alive for only a short time. It is the remains of an organism that is found in abundance nearby. It is the only fossil for this type of organism that has ever been found. It is the remains of an organism that lived in a narrow geographic area.

Option D, It is the remains of an organism that lived in a narrow geographic area

Explanation:

Animals or plants that live in a specific time span of earth and are preserved beneath the earth as fossils are known as index fossils. Generally, the time span of their burial is quite small or narrow. Such fossils has following characteristics

a) Distinctive

b) Easy recognizable

c) Abundant

d) Wide range of geographic distribution

e) Short range of time distribution.

Because of their distinctiveness, these fossils form the basis of defining boundaries in the geologic time scale and correlation of strata.

Hence, option D is correct