BIO120H1 Lecture Notes - Habituation, Molecular Evolution, Heritability

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olivehedgehog936

12 Jun 2012

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BIO120H1 Full Course Notes

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This leads to evolutionary changes that , being random, has nothing to do with adaption. Science, a theory is much more than just a speclection about how things are : it is a well though out group of propositions meant to explain facts about the real world. The theory of evolution is more that just the statement that evolution happened evolution happened: it is an extensively documented set of principles ( 6 compents ) For a theory to be considered scientific it must be testable and variable predictins. Darwinism can also be supported by what i call reproductions: facts and data that aren"t necessarily predicted by the theory of evolution but make sense only in light of theory of evolution. Natural selection poses number of problems for biology. 3 things are involved in creating an adaption by natural selections: the starting population has to be variable: mice within population have to show some difference in their coat colors.

Related Questions

1. According to scientists who accept the ï¼______) model, gene flow and migration between populations of archaic humans from different regions led to one species over time (i.e. modern humans).

Both the replacement and multiregional models of human origins agree that there was an initial dispersal of Homo erectus (or ergaster) from (_______) into the rest of the Old World.

According to the ecological species concept, in some cases different species:

	A.	can never produce offspring
	B.	can breed and produce offspring under unnatural circumstances
	C.	can only produce offspring in they live in the same ecosystem

Punctuated equilibrium and Gradualism are models that explain:

	A.	Darwin's ideas about evolutionary change
	B.	small evolutionary changes over time
	C.	the rate at which evolution occurs over time
	D.	the kinds of species that are most likely to change via the evolutionary process

Which of the following best describes punctuated equilibrium?

	A.	the rate of evolutionary change is always slow and gradual
	B.	the relatively rapid expansion and diversification of life forms into new ecological niches
	C.	evolution occurs slowly most of the time, with occasional bursts of relatively rapid periods of change
	D.	the evolution of a new species
	E.	evolutionary change based on the differential reproductive success of an individual in a species

Biological evolution is the process whereby earthâs life changes over time through changes in the genes of populations of organisms in succeeding generations. Species have evolved from earlier, ancestral species through natural selection. Discuss this process in detail. Why is this beneficial for species? Why do you think there is controversy about human evolution?