Section 2: Darwin & Evolution Flashcards
1
Q
darwin came up with evolution to explain…
A
why species look similar
2
Q
2 questions that led to the discovery of evolution
A
why are there groupings of similar species?
why do species share/differ in characteristics that help them do what they do?
3
Q
plato theory
A
all things (including species) are represented by idealized versions of those things
4
Q
aristotle theory
A
categorize things (including organisms in terms of fixed groupings (pigeon-holing)
5
Q
european cuckoo
A
nest parasitism, lay eggs in other bird’s nest
chick needs more food than most birds, rolls other eggs out of nest
6
Q
darwins 3 observations
A
- differences among species can be vague
- geological specimens are different from species today
- history is important for the distributions of species
7
Q
the origin of species 2 main ideas
A
- natural selection
- all species are descended from common ancestors
8
Q
evolution is…
A
a scientific fact
can be understood in terms of causes and effects
9
Q
scientific fact is not…
A
truth
