I believe the bone system that red marrow belongs to is D. Skeletal system.
Answer:
Nucleus
Explanation:
The DNA of a eukaryotic cell is found in an internal compartment of the cell called the nucleus
The new population that experienced natural selection is now better fit or more adapted to the environment than the old population
I believe your answer would be:
A. Fossils.
Explanation:
Because they are the preserved remains or traces of animals, plants, and other organisms from the past. They're also important evidence for evolution because they show that life on earth was once different from life found on earth today.
Hope I helped, good luck! =)
