BiologyChapter16..docVIP

Biology: Concepts and Connections, 6e (Campbell) Chapter 16 The Origin and Evolution of Microbial Life: Prokaryotes and Protists Multiple-Choice Questions 1) A stromatolite is A) a distinctive layered structure formed by heterotrophic bacteria. B) a distinctive layered structure formed by photosynthetic prokaryotes. C) an early protozoan. D) a fossil layer containing plants. E) a living algal mat formed by plasmodial slime molds. Answer: B Topic: Opening Essay Skill: Conceptual Understanding 2) Which of the following organisms first introduced oxygen into Earths atmosphere? A) cyanobacteria B) methanogens C) early protozoans D) plants E) green algae Answer: A Topic: Opening Essay Skill: Factual Recall 3) Individual prokaryote cells are about ________ eukaryote cells; collectively, all prokaryote cells on Earth ________. A) the same size as . . . weigh about one-tenth the total mass of eukaryote cells B) ten times bigger than . . . weigh about ten times as much as the total mass of eukaryote cells C) one-tenth as big as . . . weigh about one-tenth the total mass of eukaryote cells D) one-tenth as big as . . . weigh about as much as the total mass of eukaryote cells E) one-tenth as big as . . . weigh about ten times as much as the total mass of eukaryote cells Answer: E Topic: 16.1 Skill: Factual Recall 4) Eukaryotes are ________ prokaryotes. A) more ancient than B) more important in chemical cycling than C) dependent upon D) more widespread than E) more numerous than Answer: C Topic: 16.1 Skill: Conceptual Understanding 5) Prokaryotes are classified into A) domain Monera and domain Archaea. B) kingdom Bacteria and kingdom Archaea. C) domain Bacteria and domain Archaea. D) kingdom Protista and kingdom Monera. E) domain Bacteria and domain Monera. Answer: C Topic: 16.2 Skill: Factual Recall 6) Evidence for the r