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18 Cards in this Set

  • Front
  • Back
Two major kinds of cells
Prokaryotic and Eukaryotic
Prokaryotic and Eukaryotic cells can be distinguished by?
their structural organization
Prokaryotes can consist of what organims?
microorganisms called bacteria as well as archea
Eukaryotic cells
are all other forms of life
DNA combines with what to form what within what?
DNA combines with protiens to form chromosomes to form within the nnucleus
cytoplasm contains what?
thick cytosol and various organelles
in Prokaryotes the DNA
is not seperated from the cytoplasm in a nucleus
In prokaryotes there are
no membrane enclosed organelles in the cytoplasm
Almost all prokaryotes have
tough external cell walls
Continuity of life is based on
heritable inofmration in the form of DNA
the building blocks of the chains (double alpha helix)has?
founr kinds og nucleotides which convey information by the specific order of these nucleotides
the study of fossils was largely developed by Georges Cuvier a French anatomist
Cuvier recognized that extinction
had been a common occurence in the history of life
Instead of evolution Cuvier advocated
catatrophism, that boundaries between strata were due to local flood or drought that destroyed the species then present. Later, this area would be repopulated be species immigrating from other unaffected areas.
James Hutton proposed that the diversity of land forms could be explained by mechanims currently operating
Hutton proposed a theory of gradualism
a view of the earths history that attributes profound change to the cumulative product of slow but continuous processes
Charles Lyell proposed a theory of
is that geological processes had not changed throughout Earth's history