How do index fossils scientists?
they aid in the study of ranges of different organisms.
they advance understanding of the origin of life on earth.
they aid in comparison of rock layers at distant locations.
they advance understanding of rock type at the time the organism lived.

They aid in comparison of rock layers at distant locations

Explanation:

Index fossils refers to fossils that originate from organisms that were distinct, abundant, located in distant geographical locations and only lived for a short period of time.

They help scientists to compare rock layers at distant locations.

They aid in comparison of rock layers at distant locations

Explanation:

if this is true of false i think it would be true

no, because those are both different running competitions. while distance runners train their legs and their lungs to run long amounts of time, the sprinters are training their legs and their lungs to give all they have in the little amount of area they need to cover. the brain also plays a huge part in all of this.

the brain is the only thing in your body that sends messages to your body telling you to run. if you are a long distance runner and you have the mind set of a sprinter, you will not get anywhere. if you have a long distance mind set and you have to run 200m in 20 seconds then you will not make it in time.