8 Evidence for evolution Bio 11
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9 Terms
What is a Homologus structure
parts of the body that are similar in structure but have different functions
Why do Homologus structures happen
because of divergent evolution
What is vestigial structure
a structure that has been reduced in size and function but may be once functional and complete
What is DNA evidence
species that share a close evolutionarily relationships will exhibit a higher degree of similarity in DNA
What is embryological development
one embryos of different species develop in very similar ways it's suggest they have a common ancestor
What is fossil record
gives us a time scale of how long evolution take and show similarities between extinct animals and animals alive today
What is gradualism
change that happen slowly over time
What is punctuated equilibrium
suggested species often experience long periods of little or no significant change
Why does punctuated equilibrium happen
occurs when there is a big change in the environment