A swamp has an exess in trees and stuff where as a marsh doesn't
The Crossing Over only occurs in the meiosis on prophase I and metaphase I
Answer: Atoms were created after the Big Bang 13.7 billion years ago. As the hot, dense new universe cooled, conditions became suitable for quarks and electrons to form. Quarks came together to form protons and neutrons, and these particles combined into nuclei.
