1 2 biogenesis 3 earth’s history 4 charles darwin
TRANSCRIPT
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BiogenesisBiogenesis
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Earth’s Earth’s HistoryHistory
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Charles Charles DarwinDarwin
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Natural Natural selectionselection
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Evidence Evidence of of
EvolutionEvolution
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Evolution in Evolution in ActionAction
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Biogenesis
Earth’s History
Charles
Darwin
Natural Selection
Evidence of
Evolution
Evolution in Action
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Idea that life Idea that life could come could come
from nonliving from nonliving thingsthings
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What is What is spontaneous spontaneous generation?generation?
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The reason The reason maggots maggots
appear on appear on rotting meatrotting meat
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What is flies lay What is flies lay eggs that hatch eggs that hatch
on the meat?on the meat?
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Scientist who Scientist who disproved the disproved the spontaneous spontaneous generation of generation of
fliesflies
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Who is Redi?Who is Redi?
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Scientist who Scientist who disproved the disproved the spontaneous spontaneous generation of generation of
microoganismsmicrooganisms
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Who is Who is Pasteur?Pasteur?
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Shape of the Shape of the flask that flask that prevented prevented bacterial bacterial
growth in broth growth in broth for a yearfor a year
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What is S-What is S-shaped or shaped or curved? curved?
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Estimated age Estimated age of the Earthof the Earth
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What is 4 billion What is 4 billion years old?years old?
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This gas was This gas was missing from missing from
the early Earth the early Earth atmosphereatmosphere
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What is What is oxygen (Ooxygen (O22)?)?
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Habitat for the Habitat for the first life forms on first life forms on
EarthEarth
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What are oceans What are oceans and seas?and seas?
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Besides UV Besides UV radiation in the radiation in the
early early atmosphere, this atmosphere, this energy created energy created simple amino simple amino
acidsacids
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What is What is lightening or lightening or electricity?electricity?
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These 2 scientist’s These 2 scientist’s experiment experiment
simulated the simulated the atmosphere of atmosphere of
early Earth & made early Earth & made amino acidsamino acids
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Who are Miller Who are Miller and Urey?and Urey?
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The ship Darwin The ship Darwin sailed on as its sailed on as its
naturalistnaturalist
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What is the What is the H.M.S. Beagle?H.M.S. Beagle?
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Title of the book Title of the book written by written by
Charles DarwinCharles Darwin
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What is What is Origin of Origin of SpeciesSpecies??
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Islands studied Islands studied by Charles by Charles
DarwinDarwin
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What are the What are the Galapagos Galapagos Islands?Islands?
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The mechanism The mechanism proposed by proposed by Darwin for Darwin for
evolutionary evolutionary changechange
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What is natural What is natural selection?selection?
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Darwin used this Darwin used this phrase for phrase for individuals individuals
competing with competing with each othereach other
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What is the What is the “struggle for “struggle for existence” or existence” or survival of the survival of the
fittest?fittest?
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Individuals Individuals having different having different
traits in a traits in a populationpopulation
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What is genetic What is genetic variation?variation?
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Man responsible Man responsible for this theoryfor this theory
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Who is Charles Who is Charles Darwin?Darwin?
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A trait that A trait that makes an makes an individual individual
successful in its successful in its environmentenvironment
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What is an What is an adaptation?adaptation?
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In order to pass In order to pass on traits, an on traits, an
individual must individual must do thisdo this
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What is What is reproduce?reproduce?
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A measure of an A measure of an individual’s individual’s
genetic genetic contribution to contribution to
the next the next generationgeneration
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What is fitness?What is fitness?
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Remains or Remains or traces of an traces of an
organism that organism that died long agodied long ago
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What is a fossil?What is a fossil?
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Term that means Term that means a species no a species no longer existslonger exists
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What is extinct?What is extinct?
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Record of when Record of when different fossils different fossils were found and were found and
organisms organisms existedexisted
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What is a What is a geologic geologic
timescale?timescale?
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Rock strata Rock strata where the oldest where the oldest
fossils will be fossils will be foundfound
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What are the What are the bottom most bottom most
layers? layers?
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Anatomical Anatomical structures with structures with
similar structures similar structures but different but different
functionsfunctions
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What are What are homologous homologous structures? structures?
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Galapagos Galapagos tortoises and tortoises and finches were finches were similar to the similar to the finches and finches and
tortoises found tortoises found herehere
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What is the What is the mainland of mainland of
South America? South America?
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Scientists study Scientists study this this
macromolecule macromolecule to determine if to determine if organisms are organisms are
relatedrelated
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What is DNA or What is DNA or nucleic acid?nucleic acid?
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Evolution in when Evolution in when species develop species develop
similar similar characteristics characteristics
because of living in because of living in similar similar
environmentsenvironments
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What is What is convergent convergent evolution?evolution?
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Type of evolution Type of evolution in which organisms in which organisms
with similar with similar structures develop structures develop
from a common from a common ancestorancestor
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What is What is divergent divergent evolution?evolution?
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When species When species evolve and evolve and
spread out to fill spread out to fill all parts of an all parts of an environmentenvironment
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What is adaptive What is adaptive radiation?radiation?
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Fossils
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Technique used to
determine the absolute age
of a fossil
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What is radiometric
dating?