GenBio_1-2 Flashcards
refers to the gradual process of change and deveopment of living organisms over time
evolution
1795 theory of geological change; forces change earth’s surface shape; changes are slow; earth much older than thousands of years
James Hutton
Book: Principles of Geography
Geographical features can be built up or torn down.
Uniformitarianism was “the present is the key to the past”
Darwin thought if earth did change over time, what about life?
Charles Lyell
Tendency toward perfection
birds using forearm
Use and disuse
Giraffe necks
Tendency toward perfection (birds using forearm)
Use and disuse (giraffe necks)
Inheritance of acquired traits
Jean Baptist Lamarck’s Theory of Evolution
First articulated theory of evolution:
1.Organisms continually arise by
_________________ ____________.
2.Organisms develop ___________ to changing
environment through the ______ and ________ of
organs.
3. Acquired characteristics are ________.
spontaenous generation
adapatation; use and disuse
inherited
problems with lamarck’s ideas
- There is no evidence of ___________ __________.
- There is no evidence of an _____ ________
toward complexity. - There is no evidence of ________ of
acquired characteristics.
spontaneous generation
innate drive
inheritance
19th century English economist
If population grew (more babies born than die)
then, insufficient living space and food runs out
darwin applied this theory to animals
thomas malthus
Evolution, or change over time, is the process by which modern organisms have descended from ancient organisms
Darwin’s Theory of Evolution
Voyage of _____ _________?
The Beagle
date of voyage of the beagle?
who’s the captain?
what was their ship?
February 12, 1831
captained by charles darwin
sailing with H.M.S beagle
what was the destination of hms beagle?
voyage around the world
how long did the voyage of the beagle take?
5 years
what was the findings of the voyage beagle?
a revolutionary hypothesis how life changes over time
the _______ island
galaspagos
smallest, lowest islands where hot, dry, and nearly barron, and has a sparse vegatation
hood island
higher islands had a greater rainfall, a rich vegetation, and a different assortment of plants and animals
isabela