Many marine fossils have high contents of silica and calcium, which indicate the use of these materials to encase the bodies of organisms.Fossil body parts of an animal and its location of excavation confirm that these animal species underwent minimal adaptations from one period to the next.

What do index fossils reveal about the other materials found with them?

The following fossils contain the materials of the original organisms exceptGroup of answer choicescasts of marine animalsinsects trapped in amberhuman skullanimals frozen in ice

Fossil body parts of an animal and its location of excavation confirm that these animal species underwent minimal adaptations from one period to the next.

Fossils are the remains or traces of ancient , which are found in rocks and have been preserved by natural processes.

What type of fossils provide the best detail?