Bio 345 Evolution ASU Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: what are mass extinctions associated with?
Answer:
Rapid Drops in Sea Level
Q: What is LUCA?
Answer:
All organisms we know of stem from this single common ancestor
Q: Life
Answer:
group of molecules capable of capturing energy and using it to replicate, and thus
undergo evolution
Q: Abiotic chemical reactions produce
Answer:
Simple Organic Molecules
,Bio 345 Evolution ASU Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: Precambrian
Answer:
Most of earth's time
Cyanobacteria produced oxygen 2.5 BYA, changing atmospheric oxygen
concentrations
significantly over time
Events:
Life origin: 3.4 BYA
Archaea/Bacteria: 2 BYA
Endosymbionts: descended from bacteria and evolved via phagocytosis
(mitochondria and
chloroplasts)
Eukaryotes: 1.9-1.7 BYA
Q: Palezoic
Answer:
542-252 MYA
Cambrian explosion: rapid diversification of multicellular organisms
Colonization of land by end of Devonian:
First terrestrial vertebrates evolved from lobe-finned fish
, Bio 345 Evolution ASU Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: Ichthyostega have both lobe-finned and tetrapod features
Answer:
Tikaalik: partly terrestrial animals that could flex elbows and wrists
First winged insects in Carboniferous period (gigantic)
Q: End-Permian Mass Extinction
Answer:
80% of species extinct in 200 KYA
Huge volcanic interruption in Siberia
Latest 2026 Update
Q: what are mass extinctions associated with?
Answer:
Rapid Drops in Sea Level
Q: What is LUCA?
Answer:
All organisms we know of stem from this single common ancestor
Q: Life
Answer:
group of molecules capable of capturing energy and using it to replicate, and thus
undergo evolution
Q: Abiotic chemical reactions produce
Answer:
Simple Organic Molecules
,Bio 345 Evolution ASU Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: Precambrian
Answer:
Most of earth's time
Cyanobacteria produced oxygen 2.5 BYA, changing atmospheric oxygen
concentrations
significantly over time
Events:
Life origin: 3.4 BYA
Archaea/Bacteria: 2 BYA
Endosymbionts: descended from bacteria and evolved via phagocytosis
(mitochondria and
chloroplasts)
Eukaryotes: 1.9-1.7 BYA
Q: Palezoic
Answer:
542-252 MYA
Cambrian explosion: rapid diversification of multicellular organisms
Colonization of land by end of Devonian:
First terrestrial vertebrates evolved from lobe-finned fish
, Bio 345 Evolution ASU Questions and Answers with Verified Solutions |
Latest 2026 Update
Q: Ichthyostega have both lobe-finned and tetrapod features
Answer:
Tikaalik: partly terrestrial animals that could flex elbows and wrists
First winged insects in Carboniferous period (gigantic)
Q: End-Permian Mass Extinction
Answer:
80% of species extinct in 200 KYA
Huge volcanic interruption in Siberia
