states that all organisms on Earth descend with modifications from their ancestors
The theory of evolution
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are newly evolved features, such as feathers, that do not appear in the fossils of common ancestors
Derived traits
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Anatomical structures inherited from a common ancestor
Homologous structures
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reduced form of a structure that is functional in other organisms
Vestigial structures
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different skeletal structure , same uses , different ancestor
Analogous structures
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The image below shows a
Analogous structures
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is an early, prebirth stage of an organism’s development.
Embryo
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( T / F ) The cytochrome c in the pig and in the monkey share more amino acid sequences with humans than the cytochrome c in the duck shares with humans
T
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Organisms with closely related morphological features have more closely related ................... features
molecular
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is the study of how plants and animals are distributed on Earth
Biogeography
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Darwin lies the idea that natural selection leads to ...........................
adaptation
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is a measure of the relative contribution that an individual trait makes to the next generation
Fitness
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( T / F ) Changes in the environment could lead to mutation
