BSCI 124 Study Guide - Midterm Guide: Red Algae, Darwinism, Heterokont

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Unit 2 study guide part 1 (lectures 8-11) Species: a set of individuals that are closely related by descent from a common ancestor and ordinarily can reproduce with each other, but not with members of any other species. Biological species concept: species are groups of actually or potentially interbreeding natural populations which are reproductively isolated from other such groups: lamarckism. Lamarck believed that traits acquired (or diminished) during the lifetime of an organism can be passed to its offspring. This theory was later disproved, but it did introduce the mechanism for evolution and the idea that species can change by some natural process: charles darwin. Introduced the concept of natural selection while observing animals in the galapagos. Natural selection: the differential survival and reproduction of individuals with inheritable characteristics nature is the selective mechanism: this concept operates on the premises of variation, overproduction, competition, and. Artificial selection - selective breeding practiced by humans on domesticated plants and animals.