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?
1 answer:
Answer:
The correct statements are:
3. Dinosaurs evolved after Precambrian organisms;
5. Precambrian organisms were the first life-forms to become fossilized, according to this sample;
Explanation:
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