Chapter 13, And Parts Of 14&15 Test Flashcards
What was the environment like on early earth?
No water, bad gasses in the air, lighting, volcanic eruptions
Can you make a timeline from the big bang to the first human-like organisms and include the formation of Earth, prokaryotes, Oxygen Revolution, First Eukaryotes, Multicellular organisms, Animals, and the colonization of land??
Big bang-formation of earth-prokaryoictc cells (bacteria)-oxygen event- eukaryotic orgs appear-multi cell animals appear (algae)-colonization of the land- humans
Stromatolites-significance and what are they?
Rock structures formed from bacteria-earliest evidence of life
4 main stages of chemical and physical process’s on early earth
Nucleotide and amino acids form-polymers formed-protocells formed-self replication occured
Whats significant about miller Ureys expertement?
Proved organic molecules could be formed form conditions of early earth
How were polymères formed?
Linking of monomers
Role of clay?
It’s properties catalyzed formation of polymers
How did protcellls form?
Lipids in water created the boundary/membrane for the cells that then engulfed bacteria and shit
RNA self replicating significance
It acts as a catalysts and a template for new RNA molecules to form
How did eukaryotic cells evolve?
Engulfing
Significance of oxygen revolution?
Created ozone layer and had some organisms thrive leading to evolution
What’s a phylogeny?
A phylogeny is the evolutionary history of a group of organisms.
What’s taxonomy?
Study of classifying organisms
Purpose of binomial nomenclature
Have one specific name for an animal
The 3 domains
Archaea, bacteria, eukarya
