Summary Evolution - Notes

Evolution


Change in
gene pool of a population



-Fossil Evidence-


Increase complexity time
·

in over


·

More diversity
·

Intermediate forms between
groups
One rise to another
group gave



BiogeographyEvidence

Different with similar climate
·



regions
Different animals
-




Evolved separately
-




Genetic Evidence-

from
Organisms ancestor
·

came common


All have DNA and RNA

Related by varying degrees
·




-Homology_ andEmbryology-



Homologous structures
·




-Similar structure

Different function
-




Similarities
·
of
in
early stage development

, Erasmus_ Darwin


Species time
change
·

over


·
Much older earth


Didn't have mechanism for
change
-




Jean-Baptiste Lamarch



Provided for
change
·

mechanism


Individuals acquire trait

Acquired from use of body part

Change linear
·


was




Largely
·

incorrect


Acquired traits not heritable
-




Charles, Darwin

·

Modification with descent

Related have ancestor
organisms common



Species adapted to local conditions

Diverstication by branching
·
was




1 . Variation exists

Environmental
2
. conditions
change
better saited to
.
3 Individual
change
More likely to reproduce
-

Differential reproduction
4. Genes passed on to next
generation
-

Heritable