Question

Help please -thanks!

Answer 1

Answer:

It is D

this shows that there was likely greater diversity during the time that is represented by that rock layer

it could also be random chance that those fossils ended up being fossilized in that location as fossilization is a random and rare occurence so this is usually corraborated with multiple locations

also remember that a mass extinction event can fit within as large of a window as over 100k years because dating isn't bang on and a large cataclysmic even could take a long time for it to effect the whole planet enough to cause a mass extinction

Explanation:

Answer 2

It is D

Because it shows that there was a greater diversity during the time that is represented by that rock layer , it could also be random chance that those fossils ended up being fossilized in that location as fossilization is a random and rare occurence so this is usually corraborated with multiple locations