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Which of the following is the best definition of a eukaryota? a. a one-celled organism that does not have a membrane-bound nucleus b. a one-celled organism that does not have a cell wall c. an organism whose cells each contain a membrane-bound nucleus d. an organism whose cells each have a cell wall

For each of the following situations, determine whether the population is in hardy-weinberg equilibrium or is evolving.

Which of the following is true for a prokaryote? it is one of the first life forms to appear. it has all membrane-bound organelles. it must be a multicellular organism. it evolved from eukaryotes.