EVOLUTION
SOURCES OF VARIATION IN A POPULATION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
migration
|
|
|
speciation
|
|
|
natural selection
|
|
|
isolating mechanism
|
Detailed explanation-1: -Evolutionary adaptation, or simply adaptation, is the adjustment of organisms to their environment in order to improve their chances at survival in that environment.
Detailed explanation-2: -Natural selection is a mechanism of evolution. Organisms that are more adapted to their environment are more likely to survive and pass on the genes that aided their success. This process causes species to change and diverge over time.
Detailed explanation-3: -If organisms cannot adapt to the changes in their environment, they may move to another location. If they will not move, the species may become threatened, or extinct.
Detailed explanation-4: -Survival of the fittest: A term that refers to the survival of only those organisms best able (fittest) to obtain and utilize resources, resulting in the evolution of organisms that are best adapted to the environment.