Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
16 Cards in this Set
- Front
- Back
|
Genetic drift is the result of ______ |
chance |
|
|
What does evolutionary fitness measure? |
relative reproductive success |
|
|
Which of the following is not a requirement of natural selection |
catastrophic events |
|
|
Natural selection results in _____ |
a population that is adapted to its current environment |
|
|
In The Origin of Species, Darwin argued that the mechanism of descent with modification was _____. |
natural selection |
|
|
During his trip on the Beagle, Darwin found that _____ |
plants and animals living on a continent seemed more closely related to each other than to plants and animals living in similar regions on other continents |
|
|
The original source of genetic variation that serves as the raw material for natural selection is ____ |
mutation |
|
|
Which of the following is most likely to decrease genetic variation? |
stabilizing selection |
|
|
Homology is evidence of ____ |
common ancestry |
|
|
Natural selection can be defined as ___ |
a process in which organisms with certain inherited traits are more likely to survive and reproduce than individuals with other traits |
|
|
Which of the following are homologous? |
the forelimb of a dog and the forelimb of a cat |
|
|
The smallest biological unit that can evolve is the ____ |
population |
|
|
The founder effect differs from a population bottleneck in that the founder effect ______ |
involves the isolation of a small colony of individuals from a larger population |
|
|
Which one of the following can create new alleles? |
mutation |
|
|
The total collection of alleles in a population at any one time make up that population's _____ |
gene pool |
|
|
|
nknkn |
