Reading...
Play button
Play button
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
|
NATURAL SELECTION IS
|
THE DIFFERENCTIAL REPRODUCTION OF AN ORGANISM BASED UPON FITNESS IN ITS ENVIRONMENT
|
|
|
STABILIZING SELECTION IS
|
SELECTION AGAINST EXTREMES
|
|
|
DIRECTIONAL SELECTION
|
IS SELECTION AGAINST ONE EXTREME BUT FAVORING THE OPPOSITE
|
|
|
DISRUPTIVE (DIVERGENT) SELECTION IS
|
SELECTION AGAINST THE AVERAGES FOR THE EXTREMES
|
|
|
ARTIFICIAL SELECTION DIRECTIONAL
|
SELECTION DONE BY HUMANS WITH SELECTING FOR TRAITS IN ANIMALS AND CROPS
|
|
|
adaptation
|
an inherited trati that confers greater fitness
|
|
|
specialization
|
an adaptation to a specific function or environment
|
|
|
polymorphism
|
when multiple phenotypes exist within a population
|
|
|
inbreeding
|
increased likelihood of mating between organisms with similar genotypes------> limits genetic variation. doesnt mean just within family can be within race.
|
|
|
outbreeding
|
increased likelihood of mating between organisms with different genotypes
|
|
|
genetic drift
|
random change in allele frequencies in a population
smaller pop are more susceptible |
|
|
bottleneck
|
dramatic decrease in size of a population making it susceptible to genetic drift
|
|
|
convergent evolution
|
2 species posses the same analogous structures unrelated to a common acestor
|
|
|
divergent evolution
|
divergent leading to distinct pop.
|
|
|
parallel evolution
|
similar evolutionary changes in different species due to similar environmental pressures
|
|
|
commenualism
|
parasite does not hurt the host cell while taking from it.
|
