5 Multiple Choice Provided below is a dichotomous key for determining the kingdom of an organism. 1a 1b 2a 2b 3a 3b 4a 4b 5a 5b B с Unicellular Multicellular D Lacks a nucleus Nucleus present Lives only in an extreme environment Lives in a normal environment Autotroph Heterotroph Can move freely Can't move freely Archaebacteria 7L1AB Classifying Organisms A unicellular organism that lives in a pond and lacks a nucleus would be classified as a member of what kingdom? A Protista Eubacteria Fungi Go to 2 Go to 4 Go to 3 Kingdom Protista Kingdom Archaebacteria Kingdom Eubacteria Kingdom Plantae Go to 5 Kingdom Animalia Kingdom Fungi

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Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.