select all the correct answers. in the image, layer a is the topmost layer. layer c contains fossils from…

select all the correct answers. in the image, layer a is the topmost layer. layer c contains fossils from the precambrian era. layer b contains dinosaur fossils, and layer a contains fossils of mammals. which two statements are supported by this evidence? mammals lived before the precambrian era. dinosaurs and mammals existed in the precambrian era. dinosaurs evolved after precambrian organisms. precambrian organisms evolved after dinosaurs. precambrian organisms were the first life - forms to become fossilized, according to this sample.

select all the correct answers. in the image, layer a is the topmost layer. layer c contains fossils from the precambrian era. layer b contains dinosaur fossils, and layer a contains fossils of mammals. which two statements are supported by this evidence? mammals lived before the precambrian era. dinosaurs and mammals existed in the precambrian era. dinosaurs evolved after precambrian organisms. precambrian organisms evolved after dinosaurs. precambrian organisms were the first life - forms to become fossilized, according to this sample.

Answer

Brief Explanations:

Layer C has Precambrian fossils, layer B has dinosaur fossils and layer A has mammal fossils. In the geological time - scale, Precambrian is the earliest era, followed by the era when dinosaurs lived, and then the era of mammals. So, dinosaurs evolved after Precambrian organisms. Also, Precambrian organisms were the first - life forms to become fossilized as they are in the lowest layer.

Answer:

  • Dinosaurs evolved after Precambrian organisms.
  • Precambrian organisms were the first life - forms to become fossilized, according to this sample.