📓 Evolution doodle notes

Front

all discovered and undiscovered fossils and their placement in rock formations and sedimentary layers; show that life on earth was once different from life found today

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Fossil Record

Front

study of how organisms spread out around the world

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Biogeography

Front

any similarity between a pair of structures, processes, or genes of two different species; three types: anatomical, developmental, & molecular

Back

homoology

Front

involves comparing the embryos of various species; suggest that they have a common ancestor

Back

developmental homology

Front

similar in structure, but may have different functions; can be similar in related organisms because they were inherited from a common ancestor; may or may not have the same function in descendants

Back

anatomical homology

Front

species placed in the same grouping show similarities in DNA, RNA, and protein; some may share specific sections of DNA that provide evidence that they are related to one another

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molecular homology

Front

analogous structures are similar in function but DO NOT share a common ancestor or structure

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anatomical analogy

Front

states that evolution occurred slowly over a long period of time

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gradualism

Front

an entirely new body structure suddenly appears in the fossil record after a long period of stability

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punctuated equilibrium

Front

when a certain species shows relatively no evolutionary change in its body structure over a long period of time

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stasis