7 Flashcards
**The Devonian sand stones are younger than the silurian grey wackes?
True
William Paley
(1743-1805) In Natural Theology (1802), Paley presented his version of the now-famous "watchmaker analogy". -"That designer must have been a person. That person is GOD."
Charles R.Darwin
(1809-1882) -Darwin wrote: "The logic of ... [Paley's] Natural Theology gave me as much delight as did Euclid.
Charles R.Darwins Observations and implications
If animals are well-adapted to their surroundings (from his Beagle voyage) ... • If poorly adapted animals will not survive long (Beagle voyage again) ... • If the Earth is very old (from Lyell, and sights in South America) ... • And if the Earth has changed dramatically through time (Lyell and South America again) ... ***THEN, animals must have changed through time, as well!
What did Darwin’s term his process On The Origin Of Species (1859) ?
Natural selection
**Alternatives to natural selection?
• Theistic evolution: evolution is directly guided by
God.
• Neo-Lamarckism: evolution is driven by the
inheritance of acquired characters.
• Orthogenesis: living organisms have an innate
tendency to change, in a unilinear fashion, in a
particular direction.
• Saltationism: new species arise as the result of
large-scale mutations.
**Alfred Russel Wallace (1823-1913)
Came up with the same idea as Darwin @ the same time both got credit Darwin was working on his idea for the past 20 years
**Gregor Mendel(1822-1884)
Created recessive & dominant traits what Darwin could not master
If evolution is predictive …
• … then we should see evidence of relatively
gradual change in animal anatomy through time.
• … we should see evidence of new species forming
from older species.
• … we should see evidence of transitional forms
between groups of organisms.
• … we should see that all living organisms are
related, having shared a common ancestry.
• … we should see natural selection at work
**Punctuated equilibrium:
Species remain unchanged for many years, but have burst of changes, that are seen in the fossil records