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Name: ___________________________________ Date: ____________________ Period: ____________ Standards: 7.a-d Objective: Review unit concepts. Evolution Exam Review Use your notes, activities and labs to complete the following review Term Definition Darwin's concept that the environment selects those organisms that are best suited for survival based on their unique characteristics Environment Darwin's theory (and book) that organisms have been changing slowly over a very long period of time due to environmental changes, population shifts, competition, and limited resources. Descent with Modification When one group of organisms split into two groups that cannot be rejoined Variation Darwin's idea that if more offspring are born than can survive that there will be a competition for resources and only the best adapted will survive Alleles Example or Drawing Name: ___________________________________ Date: ____________________ Period: ____________ The combination of two alleles. Expressed as a physical trait in an organism. The genetic blueprint for life Organs that are not used and shrink in size due to their limited use Coevolution Evolutionary changes that drive groups of organisms apart Evolutionary changes that cause separate groups of organisms to develop similar traits Name: ___________________________________ Date: ____________________ Period: ____________ The group that humans, chimpanzees, and gorillas belong to because they all of binocular vision, opposable thumbs, and large cerebrums
