Chapter 10 Vocabulary Flashcards
Adaption
An inherited trait that is selected over time because it allows an organism to better survive in its environment.
Variation
the difference in the physical traits of an individual from those of other individuals in the group to which it belongs.
Artificial Selection
process by which humans modify a species by breeding it for certain traits.
Heritability
is the ability of a trait to be passed down from one generation to the next.
Natural Selection
a mechanism by which individuals that have inherited beneficial adaptations produce more offspring on average than do other individuals.
Population
all the individuals of a species that live in an area.
Fitness
a measure of the ability to survive and produce more offspring relative to other members of the population in a given environment.
Biogeography
the study of the distribution of organisms around the world.
Homologous Structures
similar in structure appear in different organisms and have different functions.
Analogous Structures
similar in function as a body part of another organism but is structurally different.
Vestigial structures
are remnants of organs or structures that had a function in an early ancestor.