Ch19 Flashcards
1
Q
define coevolution
A
The process in which evolutionary changes in one species drives changes in a another species.
2
Q
define mutualism
A
A beneficial association between different species
3
Q
can species under mutualism evolve faster?
A
Yes
ex. lichen or ants & fungus
4
Q
what might occurs when mutualism is tight between two species
A
co-speciation
5
Q
define Antagonistic coevolution
A
A coevolving species has negative effect on the other
6
Q
What drove co-speciation of lice to its host?
A
a correspondence of body size between parasites & hosts that has to do with preening behavior
7
Q
define mosaic coevolution
A
pair of species in some communities show mutualism, but antagonistic in others
ex. Greya & woodland star
