ap biology - unit 7: endosymbiosis & cambrian explosion
originally streamed in 2019 with Caroline KoffkeTeachercurriculum note
This video is labeled 'Unit 7,' but endosymbiosis and the origins of cell compartmentalization (how eukaryotes formed from prokaryotes) are covered in Unit 2 ā Cell Structure and Function (topics 2.10 and 2.11) in the current AP Biology course.
covered in this stream
timestamps
- 0:00
Formation of Eukaryotes
- 0:35
Membrane Folding for Organelles
- 1:05
Endosymbiont Theory Introduction
- 1:35
Mitochondria from Prokaryote Engulfment
- 2:06
Heterotrophic Prokaryote Benefits
- 2:37
Photosynthetic Prokaryote for Plants
- 3:11
Evidence for Endosymbiosis
- 3:43
Mitochondrial DNA Details
- 4:45
Football Field Timeline Analogy
- 5:15
Origin of Life Milestones
- 5:46
First Eukaryotes Appearance
- 6:17
Cambrian Explosion Overview
- 6:50
Marine Life Diversity Boom
- 7:20
Colonization of Land
- 7:51
Evolution to Land Animals
- 8:21
Land Colonization Timeline
- 8:52
Rapid Diversity Burst
- 9:23
Timeline of Life Forms
- 9:55
Dinosaurs and Extinctions
- 10:25
Major Mass Extinction
- 10:57
Adaptive Radiation Aftermath
- 11:27
Recent Species Appearances
- 11:58
Humans' Brief History
- 12:59
Key Origins Summary
- 13:30
Origins of Life Recap
- 14:31
Diversity of Life Conclusion
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