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Unit 7 Vocabulary
Terms in this set (31)
A structural adaptation that enables an organism to blend in with its environment
Ability of an animal to look like another more harmful animal
A trait that helps an organism survive and reproduce
A process in which individuals that have certain inherited traits tend to survive and reproduce at higher rates than other individuals because of those traits.
Change in a kind of organism over time; process by which modern organisms have descended from ancient organisms.
Preserved remains of once-living organisms
used to compare organisms by studying their DNA and associated proteins (amino acid sequences)
Structures in different species that are similar because of common ancestry.
The shared ancestor of new, different species that arose from one population
Isolation between populations due to physical barriers
Separation of species or populations so that they cannot interbreed and produce fertile offspring
Formation of new species
An evolutionary pattern in which many species evolve from a single ancestral species
Assignment of objects or people to categories on the basis of shared characteristics.
a key for the identification of organisms based on a series of choices between alternative characters
A family tree that shows the evolutionary relationships thought to exist among groups of organisms
A diagram that is based on patterns of shared, derived traits and that shows the evolutionary relationships between groups of organisms
A change in the allele frequency of a population as a result of chance events rather than natural selection.
A scientific discipline concerned with naming and classifying the diverse forms of life.
order of classification (will have to put in order from most inclusive to least inclusive)
kingdom, phylum, class, order, family, genus, species
an inherited behavior that does not depend on the environment or experience
A physiological cycle of about 24 hours that is present in all eukaryotic organisms and that persists even in the absence of external cues.
A movement of people or animals from one region to another.
A state of extremely low metabolism and respiration, accompanied by lower-than-normal body temperatures
A period of reduced activity that some animals experience in the summer or in heat
a behavior that has been learned from experience or observation
An organism's decreasing response to a stimulus with repeated exposure to it
The process by which certain animals form attachments during a critical period very early in life.
A type of learning in which an organism comes to associate a neutral stimulus to a response. Also called Pavlovian or respondent conditioning. Learning based on association of stimuli.
Growth of a plant shoot toward or away from light.
response of a plant to the force of gravity
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Darwin and Natural selection
Evolution Vocabulary 1st Pd Fall 2015
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