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23 Cards in this Set

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Jean Baptiste Lamark

Darwin Predecessor. Proposed first evolutionary hypothesis.

Theory of Acquired Characteristics

Lamarck's belief that traits an individual aquires during a lifetime will be passed down genetically.

Giraffees.

Phenotype

Physical appearance of a gene

Naturalist?

An expert in natural history - life science/wild life experent/natural historian

Darwin

Naturalist who developed the theory of evolution

Beagle

The ship Darwin took a five year year voyage on when he discovered evolution.

What did Darwin orginally believe?

That individuals and species and the world had remained unchanged since the begining of time

Natural selection

(1) Individual organisms withing a specisies exhibit variation. (2) These organsisms compete for means. (3) The terms of reproductive success differ from organism to organism. (4) Organims adapt to conditions as the environment changes.

Four points

Galopogos Islands

Darwin noticed different finches had different beak size for eating different seeds. They must share a common ancestor. LIke the African Ostrich and the South American Rhea.

Do Individuals or Populations evolve?

Individuals

Darwin not Lamarck

Hypothesis

Possible explanation or answer to a question that can be tested.

Observation

Anyu use of the senses to gather information.

Scientific Theory

A unifying explanation for a broad range of hypotheses and observations that have been supported by tested. It has great power to predict and explain natural phenomena.

Theory of Gravity

What are the four types of evolutionary evidence?

(1) Anatomical Structures


(2) Fossil Evidence


(3) Biogeographical


(4) Biochemcial

Homogous structure

Similar sturcutres that appear in different species that give the appearance of a shared common ancestor

Arm bones in bats/horses/humans

Vestigial structures

Something that is fully developed in one group and has little-or no function in other.

Pelvic bones in whales. Tail bones in humas.

Analogous structuers

Sturcutres that evolved seperately and despite appearing similarly show no sign of a common ancestor.

Bird wings versus insect wings.

Fossil

Solidifed remains/imprints in sediment that help to establish a geological time line

Transtional fossil

Fossils that bear a resemblence/link to two groups in present day, classified seperately.

Archaepoteryx

Transtional fossil that links different birds to dinosaurs

Continental drift

Movement of the earth's crust resulting in the movement of the continents away from each other

Pangea

What does all life share?

DNA and ATP

What is an example of biochemical evolution?

Superbacteria that have become antibiotic resistant.