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Population Evolution Vocabulary (Extra-Credit)

Across
All of the living parts of the environment.
All the members of a single species occupying a particular area at the same time.
This is the ability to produce surviving offspring.
Speciation where two geographically isolated populations of one species become different species over time.
Individuals do not choose mates at random.
Exists among members of a population.
Species concept that relies primarily on reproductive isolation rather than trait differences to define a species.
Some differences affect survivability.
Having a chromosome number beyond the diploid [2n] number.
Deviations from a Hardy-Weinberg equilibrium indicate that this has taken place.
Isolating mechanism that prevents hybrid offspring from developing or breeding.
All of the non-living parts of the environment.
Diploid plant produces diploid gametes due to nondisjunction during meiosis.
When a new population is started from just a few individuals.
Down
Some differences affect the likelihood of successful reproduction.
Provides new alleles that may be more adaptive.
All of the alleles and gene loci within a population.
Type of selection where one extreme phenotype is favored, usually in a changing environment.
The splitting of one species into two.
Many differences are heritable genetic differences.
Type of selection where two extreme phenotypes are favored over the average phenotype, leading to more than one distinct form.
Pertains to large scale evolutionary changes.
Speciation where one population develops into two or more reproductively isolated groups.
Natural and Sexual are the main types.
The members of a population differ from one another.