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Theory of Evoln Natural Selection Potpourri 10 Point 20 Points 30 Points 40 Points 50 Points 10 Point 20 Points 30 Points 40 Points 50 Points 30 Points 40 Points 50 Points Popln Gen History of life
Earth is approximately how old?
4.6 billion years old
Life comes life is called?
biogenesis
Life comes from nonliving things is called?
Spontaneous generation
When half the radioactive material is missing.
Half life
The original amount is 10 g and you have 2.5 left How old is the fossil if half life is 4500 yrs?
9000 yrs
The remains or traces of an organism?
fossil
An alligator leg and lion leg are similar so considered to be
homologous
Tailbone and appendix have no known (?) function so are called
Vestigial structures
A bird and bat both fly, so have evolved similar things this is what type of evoln?
Convergent evoln
A popln of finches all go to island but beaks change over 20 generations due to food and become new species
Divergent evoln
The total genetic info available in a popln
Gene pool
2 ways to change gene flow in population?
Emigration Immigration Mutation?
Explain how sexual selection has increased the size of peacocks tails
Females attracted to male with longest tail, so those traits are passed on
What is a group of similar organisms that can reproduce fertile offspring?
species
Name 2 ways a new species may be created.
Geographical isolation and reproductive isolation
The strong survived and pass on traits to next generation is called?
Natural Selection
Who studied finches and coined term Natural Selection?
Charles Darwin
A species slowly changing over long period to become a new species is an example of?
Gradualism
the change of genetics in a population over a few generations or one trait is called
microevolution
Name 3 of the 4 ways Darwin said Natural Selection occurs.
Over production, genetic variation, struggle to survive, and differential reproduction.
The idea that if one thing evolves so will another that is dependent on it (or die?).
Coevoln
Bacteria reproduce extremely fast, so display ____ growth.
Exponential
A genetic change can be called a
mutation
Cyanobacteria converted chemicals to energy, called ___ and are thought to provide ______ to world as byproduct
Chemosynthesis, oxgyen
The idea that one bacteria may have engulfed another that became mitochondria is ___ theory.
endosymbiosis
Make your wager
Construct a cladogram of: fish, amphibians, and birds with chcts of: vertebrae, lungs and wings, and legs
fish amphibian birds vertebrate legs Lungs and wings