For any terrestrial planet in the solar system, the core would be the densest layer, and the crust would be the least dense layer.
The correct answer is D. for sure.
Cast- solid copy
Mold- hollow form
Carbon film- details left after an organism decays
Trace fossil-record of an organisms activity
Petrified fossils- living things turned into rock
Because that way he could study the inheritance of traits,the allele for all plants is dominant
hope it helps
