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ISU BIOL 211 - ANSWER SHEET Practice Test for Exam 1

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ANSWER SHEET Practice Test for Exam 11. “An explanation for natural phenomena that is well supported by many reliable observations” describes which of the following?a. Factb. Hypothesisc. Lawd. Scientific theory2. A scientific theory is considered fact.a. Trueb. False3. Atmospheric oxygen became abundant due to eukaryotic plantsa. Trueb. False4. What are stromatolites?a. Fossilized colonies of prokaryotes and sedimentb. Fossilized colonies of eukaryotes and sedimentc. A clade within domain Bacteriad. A clade of protistse. None of the above5. Mitochondria and plastids both have circular DNA separate from the DNA contained in the nucleus of a eukaryotic cell. This is evidence supports what theory?Endosymbiant Theory6. Which clade carries out non-plant like photosynthesis?a. Proteobacteriab. Spirochetesc. Chlamydiasd. Cyanobacteriae. More than one of the above7. Bacteriorhodopsin is a photosynthetic pigment unique toa. Extreme halophilesb. Extreme thermophilesc. Methanogensd. Proteobacteria8. African sleeping sickness is caused by Trypanosoma, a member of cladea. Alveolatab. Euglenozoa  remember, Kinetoplastid is a sub group of Euglenozoac. Stramenopilad. Parabasala9. Members of this clade have complex life cycles involving two or more host species.a. Apiocomplexansb. Euglenozoac. Parabasalad. Dianoflagellates10. Oomycetes have ________ hyphae and what kind of nutrition?a. Septate, absorptiveb. Coenocytic, ingestivec. Septate, ingestive d. Coenocytic, absorptive11. Plasmodial slime molds belong to cladea. Stramenopilab. Ameobozoac. Rhodophytad. Alveolata12. In a certain area of the Pacific, yellow and green sunlight penetrate the water down to 50m. I have discovered a new photosynthetic protist that lives 75m below the surface of the water. This organism must belong in the cladea. Chlorophytab. Stramenopilac. Rhodophytad. Charophyceae. Plantae13. Which feature is NOT found in both Carophyceans and true plants?a. Cellulose in cell walls b. Isomorphic alternation of generations  ALL plants have HETEROMORPHIC Alternation of Generationsc. Sporopollenind. Phragmoplast formatione. All of the above are common to both14. Flagellated sperm which must swim through external water to fertilize the egg in which phyla?a. Bryophytab. Hepatophytac. A & Bd. Neither A nor B15. A bryophyte spore may germinate into a _________ before becoming a gametophytea. Filamentous protonematab. Thalloid protonematac. Archegoniaphored. Antheridiophoree. None of the


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ISU BIOL 211 - ANSWER SHEET Practice Test for Exam 1

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