por farah badrawy hace 17 años
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All species are characterised by variation between individuals. In any new environment there will be different conditions from place to place.
this principle of divergence is the most important factor in the evolution of the new species
If a change occurs in the physical environment, individuals will be exposed to new circumstances, and competition from a different set of inhabitants
the selective action of the struggle for existence between species and within species
Imagine the changes which might be effected if there were a similar force acting in nature over millions of years.
Artificial selection has had a marked effect on the form of domesticated plants and animals, although it has only been applied for a small number of generations
Evolution and religion are incompatible.
evolution is not observable or testable
because fossil record is not his means evolution theory is false.
Evolutionary theory is a theory about the origin of life.
Evolution is a “ladder of progress”, organisms are constantly getting better.
-change in the herediatry characterisitics of a group of organisms over the course of generations
a group of organisms that can breed with each other to produce fertile offspring & cannot breed with the members of other groups
Genetically determined differences in the characteristics of members of the same species
Evolutionary process by which new biological species arise
dividing one specie into two or more species
it is like climbing a ladder...organisms are getting better
greater reproductive success among particular members of a species arising from genetically determined characteristics that confer an advantage in a particular environment
any evidence on ancient life
a permenant change in the genetic material usually in a single gene
his death
Publication of The Origin of Species
First unpublished ideas on Evolution
Enters Christ College, Cambridge
his birth
