Redi’s experiment
Pasteur’s experiment
Miller’s experiment
About 3,700 m.a. ago cyanobacteria appeared (→ stromatolites), which were already carrying out
oxygenic photosynthesis (→ photosynthetic autotrophic cells) with which the atmosphere became
enriched in O2 and later in O3 (protective layer). It takes 100 years for stromatolites to grow 5cm.
What are Stromatolites? https://www.youtube.com/watch?v=N-G7IJCkyvg
Cell evolution
Simple organic molecules
complex organic molecules, macromolecules
forming membranes (Oparin coacervates and Fox microspheres)
molecules (1st RNA, then DNA)
association of macromolecules
Membranes containing self-replicating
ancestral prokaryotic cell (PROGENOTE or PROTOBIONTE) Woese Bacteria
Bacteria Archaeobacteria and eukaryotic cells. Regarding its nutrition:
Anaerobic heterotrophs
Autotrophs
Aerobic heterotrophs
https://www.youtube.com/watch?v=03UOhWKqru0
Homologous Structures vs Analogous Structures | Key Differences https://www.youtube.com/watch?v=2N3OPRodRvk
Vestigial Structures | What are Vestigial Structures? https://www.youtube.com/watch?v=lMrPxwl4OUo
Muelas del juicio
Coxis
Convergent Evolution vs Divergent Evolution https://www.youtube.com/watch?v=X-XtZyHcck4
Fossil evidence
Fossils show organisms that existed in the past and that are different
from present-day organisms, so species do change over time.
How complete is the fossil record? https://www.youtube.com/watch?v=j7X136R4bD4
Fossils & Evidence For Evolution https://www.youtube.com/watch?v=iYr3sYS9e0w
Living Fossils: Platypus
Coelacanths (Coelacanthiformes) were believed
extinct 65 million years ago, until a species
belonging to this order was discovered in 1938
Leaves of Ginkgo sp., 170 million
years old, and leaves of a current
Ginkgo biloba
Other evidence
Lamarckism
Neo - Darwinism
Process of Evolution | Gradualism vs Punctuated Equilibrium vs Catastrophism
https://www.youtube.com/watch?v=qSjiFxIHknk
Hox genes and the evolution of animal body plans https://www.youtube.com/watch?v=MwuOyew_0Ws
The Evolution of Walking and Breathing - A Week in Science https://www.youtube.com/watch?v=AvhoP9BB6AI
Formation of New Species by Speciation
https://www.youtube.com/watch?v=HPQF9BQnw2A
GEOGRAFICAL BARRIER
SEXUAL AND PHYSIOLOGICAL BARRIERS
Reproductive Isolation and Speciation in Lizards
https://www.youtube.com/watch?v=EmtIofdeUbc
CHROMOSOMAL BARRIER
ETHOLOGICAL BARRIER
Gradualism. Anatomical changes happen
gradually and continuously over long periods
of time
Punctuated equilibrium. Changes occur
rapidly over short periods of time followed
by long periods without any changes