macroevolution Flashcards
(10 cards)
1
Q
what is microevolution?
A
evolution within populations
2
Q
what is macroevolution?
A
evolution on a species level
3
Q
how are fossils formed?
A
remains must be in water and then covered by sediment, soft parts washed away
4
Q
where is the highest rate of speciation and why?
A
tropical latitudes: hot, stable climate, rapid evolution, older (more time to evolve)
5
Q
what is dispersal?
A
movement of organisms from one region to another with limited return exchange
6
Q
what is vicariance?
A
formation of barriers that divides a population
7
Q
what is the formula to work out diversity?
A
d1 + originations- extinctions = d2
8
Q
what is standing diversity?
A
total diversity at a given time
9
Q
what is turnover?
A
extinction and replacement per unit of time
10
Q
dv cx
A
