Adaptation
Formation of a new species.
What is speciation?
Offspring of two closely related individuals, not of the same species.
What is a hybrid?
Genetic differences among individuals in a population.
What is variation?
Model that shows how species diverge gradually over time in small steps.
What is the gradual speciation model?
A heritable trait or behavior in an organism that aids in its survival and reproduction in its present environment.
What is adaptation?
Speciation that occurs via geographic separation.
What is allopatric speciation?
What is an allopolyploid?
Process where humans intentionally choose organisms with desirable traits and breed them to enhance those specific characteristics in future generations.
What is artificial selection?
Process by which groups of organisms evolve in diverse directions from a common point.
What is divergent evolution?
Speciation when one species radiates to form several other species.
What is adaptive radiation?
Polyploidy formed within a single species.
What is an autopolyploid?
Reproduction of individuals with favorable genetic traits that survive environmental change because of those traits, leading to evolutionary change.
What is natural selection?
Process by which groups of organisms independently evolve to similar forms.
What is convergent evolution?
Allopatric speciation that occurs when something in the environment separates organisms of the same species into separate groups.
What is vicariance?
Condition of a cell having an extra chromosome or missing a chromosome for its species.
What is aneuploidy?
Parallel structures in diverse organisms that have a common ancestor.
What are homologous structures?
Continued speciation divergence between two related species due to low fitness of hybrids between them.
What is reinforcement?
Speciation that occurs in the same geographic space.
What is sympatric speciation?
Reproductive isolation mechanism that occurs before zygote formation.
What is a prezygotic barrier?
Physical structure present in an organism but that has no apparent function and appears to be from a functional structure in a distant ancestor.
What is a vestigial structure?