Adaptations Flashcards
Evolution
A change in the genetic composition of a population over time.
Microevolution
Evolution at the population level.
Macroevolution
Evolution that gives rise to new species, genera, families, or classes.
Evolution by Artificial Selection
The process in which humans determine which individuals t breed, typically with a preconceived set of traits in mind.
Evolution by Natural Selection
The process in which the environment determines which individuals survive and reproduce.
Fitness
An individual’s ability to survive and reproduce.
Adaptation
A trait that improves an individual’s fitness
Evolution by Random Processes
The processes that alter the genetic composition of a population over time, but the changes are not related to differences in fitness among individuals.
Allopatric Speciation
The process of speciation that occurs with geographic isolation.
Sympatric Speciation
The evolution of one species into two species, without any geographic isolation.
Genetically Modified Organism (GMO)
An organism produced by copying genes from a species with some desirable trait and inserting them into other species of plants, animals, or microbes.