Chapter 10- Evolution Flashcards
A group of organisms so similar to one another that they can reproduce and have fertile offspring
Species
Traces of organisms that existed in the past
Fossils
States that natural disasters such as floods and volcanic eruptions have happened often during Earth’s long history. These events shaped landforms and caused species to become extinct in thin process. (sudden disaster)
Catastrophism
States that landforms resulted from slow changes over a long period of time (moving or changing slowly)
Gradualism
States that the geologic processes that shape Earth are uniform through time/proposes that present geologic processes are the key to the past (always staying the same)
Uniformitarianism
The difference in the physical traits of an individual from those of other individuals in the group to which it belongs
Variation
A feature that allows an organism to survive better in its environment and can lead to greater change in a population over time
Adaptation
The process by which humans change a species by breeding it for certain traits
Artificial selection
The ability of a trait to be passed down from one generation to the next
Heritability
A mechanism by which individuals that have inherited beneficial adaptations produce more offspring on average than do other individuals
Natural selection
All the individuals of a species that live in an area
Population
A measure of the ability to survive and produce more offspring relative to other members of the population in a given environment
Fitness
The study of the distribution of organisms around the world
Biogeography
Features that are similar in structure but appear in different organisms and have different functions
Homologous structures
Structures that performs a similar function but not similar in origin (evolved separately)
Analogous structures