TF: Pan Pan Jiang
THE O RIGIN OF THE SPECIES:C HAPTER 3(S TRUGGLE FOR EXISTENCE )
In thischapter, whatdoes Darwinfixate onasa mainforce ofnatural selection? (wenow know that
Darwin emphasizes the “struggle for existence” as the ultimate force behind natural selection, as it is
lack of resources, etc. in the natural environment that any potentially beneficial variation will allow an
individual to survive and pass on its variation to its offspring.
What pointdoesDarwin make whenhetalksabout “checks”?
Darwin makes the case that organisms tend to increase at a geometric rate, yet it is clear that for each
species, there are