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More organisms are produced than can survive so they must __________ for resources such as food.
modification
compete
gene pool
polygenic traits
different courtship dances among two populations of cranes
vestigial organs
speciation
millions
Species alive today descended with ______________ from ancestral species from the past.
modification
compete
gene pool
polygenic traits
different courtship dances among two populations of cranes
vestigial organs
speciation
millions
The evolution of Darwin's finches is an excellent example of
modification
compete
gene pool
polygenic traits
different courtship dances among two populations of cranes
vestigial organs
speciation
millions
Which is an example of behavioral isolation?
modification
compete
gene pool
polygenic traits
different courtship dances among two populations of cranes
vestigial organs
speciation
millions
Traits controlled by more than one gene, such as human height, are known as
modification
compete
gene pool
polygenic traits
different courtship dances among two populations of cranes
vestigial organs
speciation
millions
Living things on Earth have been evolving for ___________ of years.
modification
compete
gene pool
polygenic traits
different courtship dances among two populations of cranes
vestigial organs
speciation
millions
All the genes in a particular population make up its
modification
compete
gene pool
polygenic traits
different courtship dances among two populations of cranes
vestigial organs
speciation
millions
Structures that have different mature forms but develop from similar embryonic tissue are
modification
compete
gene pool
polygenic traits
different courtship dances among two populations of cranes
vestigial organs
speciation
millions
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