The History of Life
By: Devin Tooley, James Costian, Sarai Alonso
Beginnings of Life
- The abiotic (nonliving) synthesis of small organic molecules, such as amino acids and nitrogenous bases
- The joining of these small molecules into macromolecules, such as proteins and nucleic acid
- The packaging of these molecules into protocells, droplets with membranes that maintained an internal chemistry different from that of their surroundings
- The origin of self-replicating molecules that eventually made inheritance possible
Early species that came out of this include Dinosaurs.
We believe this based on the experiment done by Miller-Urey, which showed that advanced organic compounds could be made from simpler things and electricity (lightning).
EX: terrestrial vertrbrates
A lot of species that came from adaptive radiation came because of mass extinctions that did not affect specific species - those species found a way to reproduce to make more species with the new, game-changing adaptations.