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Evolution
Evolution
20
Biology
9th Grade
06/04/2013

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Term
Evolution
Definition
Describes wanted breeding for specific traits, or a combination of traits.
Term
Mimicry
Definition
The resemblance of one organism to another one or to an object in its habitat to protect it from its predator.
Term
Camouflage
Definition
Lets a specie blend in with its surroundings and avoids it from being seen.
Term
Homologous Structure
Definition
Having the same or somewhat similar relationship.
Term
Analogus Structure
Definition
Characteristics of different species that are similar in function but not exactly in structure.
Term
Vestigial Structure
Definition
Give a clue to the evolutionary history of a species because they are small parts of structures found in the ancestral species.
Term
Embryo
Definition
An organism in early stages of developing.
Term
Natural Selection
Definition
The process where organisms better adapt to the environment. To produce and create more offspring.
Term
Artificial Selection
Definition
Most known as selective breeding, producing a offspring that gives most of the characteristics found in their parents.
Term
Fossil
Definition
The remains or bones of prehistoric organisms.
Term
Geographic Isolation
Definition
When species get physically separated in a population.
Term
Mutation
Definition
A change in the structure of a gene.
Term
Non-random Mating
Definition
Mating individuals that are more related or less related than those
drawn by chance from a random mating.
Term
Reproductive Isolation
Definition
The movement of genes is stopped between two populations of the same species.
Term
Sexual Selection
Definition
A type of natural selection that affects the traits that let an individual's able to choose a mate.
Term
Speciation
Definition
When new and different species form in the course of evolution.
Term
Species
Definition
A group or a single organism.
Term
Gene Flow
Definition
Movement of alleles or genes from one population to another
Term
Darwin
Definition
Scientist who made a theory of evolution by natural selection.
Term
Genetic equilibrium
Definition
The alleles within the gene pool have reached a balance which everything in nature looks for.
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