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13 Cards in this Set

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paleontology
the science of the forms of life existing in former geologic periods, as represented by their fossils.
biogeography
the study of the geographical distribution of living things.
embryology
the science dealing with the formation, development, structure, and functional activities of embryos.
comparative anatomy
the study of anatomical features of animals of different species
sexual selection
a special type of natural selection in which the sexes acquire distinct forms either because the members of one sex choose mates with particular features or because in the competition for mates among the members of one sex only those with certain traits succeed.
molecular biology
the branch of biology that deals with the nature of biological phenomena at the molecular level through the study of DNA and RNA, proteins, and other macromolecules involved in genetic information and cell function, characteristically making use of advanced tools and techniques of separation, manipulation, imaging, and analysis.
artificial selection
a process in the breeding of animals and in the cultivation of plants by which the breeder chooses to perpetuate only those forms having certain desirable inheritable characteristics.
variation
mutations, sexual reproduction,outbreading, etc.
sexual
male competition, female choice, sexual dimorphism
competition
the struggle among organisms, both of the same and of different species, for food, space, and other vital requirements.
adaptations
An alteration or adjustment in structure or habits, often hereditary, by which a species or individual improves its condition in relationship to its environment.
fitness
the genetic contribution of an individual to the next generation's gene pool relative to the average for the population, usually measured by the number of offspring or close kin that survive to reproductive age.
directional
pesticide resistance, peppered moth