Download THE ANIMAL AND PLANT TISSUES

The Evolution Theory
The Theory of Life....
Topic Outline
1. Evolution by Lamarck
 History
 Theoretical Evidences
2. Evolution by Charles Darwin
 Background
 Evolution by Natural Selection
3. Theoretical Comparison
 Lamarck vs. Darwin
Jean-Baptiste Lamarck (1744-1829)
Historical Background:
 Born on August 1, 1744, in Bazentin-le-Petit,France
 Appointed as an assistant botanist at the Jardin des
Plantes
*a royal botanical garden
 Published Philosophie Zoologique
in 1809
 Classified some mollusks
( Crustacea, Arachnida,
and annelida)
 Anticipated the work of Schleiden & Schwann in cell
theory
“...... no body can have life if its constituent parts are
not cellular tissue or are not formed by cellular
tissue.”
 Written papers on physics and meteorology (weather
data)
 Losed sight in 1818
 Died on December 28, 1829
Lamracks Scientific Theory:
 acquired traits can be inherited.
Example: baldness, eye color
 organisms are not passively altered by their
environment
Example: natural phenomenas
Charles Robert Darwin (1809-1888)
Background:
 Born in Shrewsberry, Shrewspire, England, on 12
February 1809
 Member of the Plinian Society
 A member in the Voyage of the
Beagle
Theory:
Evolution by Natural Selection
variation exists among individuals of a
species
scarcity of resources would lead to
competition between individuals of the
same species
 The Origin of Species
 Changed Biology
 Theoretical Study
Lamarck
Darwin believes
believes that...
that...
Lamarck vs. Darwin
Change is made by
what the organisms
want or need
Evolution happens
according to a
predetermined plan
and that the results
have already been
decided
Changes organisms
during its life do not
affect the evolution of
the species
Evolution does not
happen according to
any sort of plan