Evolution Crossword

Change in the gene pool in a population from generation to generation.
Remains of a prehistoric organism that is preserved as a mold or cast in a rock.
Biological populations are physically isolated by an extrinsic barrier and evolve intrinsic reproductive isolation.
New species evolve from a single ancestral species while inhabiting the same geographic region.
Most basic unit or category of biological classification.
The adjustment or changes in behavior, physiology, and structure of an organism to become more suited to an environment.
A structure in an organism that has lost all or most of its original function during evolution.
Very different animals have bones that appear to have similar form or function.
Have similar ancestries and common traits but may not have the same function in an organism.
Change or difference in condition, amount, or level.
Fossils or organisms that show the intermediate states between an ancestral form and that of its descendants.
The movement of genes or alleles between interbreeding populations of a particular species.
Variation in the relative frequency of different genotypes in a small population.
A distinct form resulting from a change in the structure of a gene.
An event that drastically decreases the size of a population.
Stock of different genes in an interbreeding population.
Unborn offspring.
Species adapt and change by natural selection with the best suited mutations becoming dominant.
The quantitative representation of natural and sexual selection within evolutionary biology.
Describes how a group of organisms share a most recent common ancestor.
Passing traits from parents to offspring.
Science of defining and naming groups of biological organisms based on shared characteristics.
Relative frequency of an allele at a particular locus in a population.
Termination of an organism or species.
Idea or set of ideas used to explain facts or events.
Process whereby organisms better adapted to their environment tend to survive and produce more offspring.