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Name Date Class Domains and Kingdoms Write the letter of the correct answer on the line at the left. 1. ___ Which of the following is NOT true about bacteria? A Bacteria can be autotrophic or heterotrophic. B Bacteria are prokaryotes. C Bacteria have a cell nucleus. D Bacteria are unicellular. 2. ___ Which of the following is true about animals? A Animals are eukaryotes. B Animals are autotrophic. C Animals are unicellular. D Animal cells do not contain nucleic acids. 4 3. ___ Bacteria and archaea are placed in separate kingdoms because A they both are unicellular B their structure and chemical makeup differs C bacteria are autotrophs and archaea are heterotrophs D bacteria are prokaryotes and archaea are eukaryotes ___ Organisms belonging to which kingdom are all autotrophs? A fungi B plants C protists D animals Fill in the blank to complete each statement. 5. The dense area of a cell that contains nucleic acids is the _____________. 6. In the modern system of classification, the three domains are Bacteria, Archaea, and _____________. 7. An organism whose cells lack a nucleus is called a(n) _____________. 8. Marine dinoflagellates and seaweed are members of the _____________ kingdom. 9. Most members of the _____________ kingdom feed by absorbing nutrients from dead or decaying organisms. 10. Multicellular organisms that make their own food belong to the _____________ kingdom. Name Date Class Evolution and Classification Write the letter of the correct answer on the line at the left. 1. ____ Similar organisms that are NOT related are an example of A natural selection B convergent evolution C divergent evolution D common ancestor 2. ____ Two groups of organisms with similar characteristics may share A a common ancestor B an evolutionary history C both A and B D neither A nor B 3. ____ Of the following, the best definition of evolution is A a rapid change in a species over time B the adaptation of an organism to its environment C the ability of an organism to survive and reproduce D a gradual change in a species over time 4. ____ Which statement is true? A Species with similar evolutionary histories are not classified together. B Species with different evolutionary histories are classified more closely together. C Species with similar evolutionary histories are classified more closely together. D Species with similar evolutionary histories are classified in the same species. Fill in the blank to complete each statement. 5. To determine whether two organisms are related, scientists may compare the _________________________ of their cells. 6. _________________________ is the process by which individuals that are better adapted to their environment are more likely to survive and reproduce. 7. A(n) _________________________ is usually a homologous structure that is shared by all organisms in a group. 8. The theory of evolution was proposed by _________________________. 9. If two species have very similar structures, they may have evolved from a(n) _________________________. 10. One thing a branching tree diagram shows is the _________________________ in which specific characteristics may have evolved.