Lecture 19 Flashcards
1
Q
Allopatric speciation
A
Occurs when biological populations of the same Species become vicariant
2
Q
Biological species concept
A
Defines a species as members of populations that actually or potentially interbreed nature
3
Q
Gradualist model
A
Most evolution is marked by long periods of evolutionary stability
4
Q
Morphological species concept
A
Morphospecies and the recognition is based on overall similarity
5
Q
Polyploid
A
Containing more than two homologous sets of chromosomes
6
Q
Punctuated equilibrium
A
The hypothesis that evolutionary development is marked by isolated episodes of raped speciation between long periods of little or no change
7
Q
Adaptive radiation
A
A process in which organisms diversify rapidly into a multitude of new forms
