1
A) the ocean's edge B) unknown C) under frozen oceans D) near deep-sea vents 2
A) viruses B) one-celled plants C) one-celled animals D) bacteria 3
A) potassium B) aluminum C) iron D) silicon 4
A) proteins B) RNA C) peptides and nucleic acids D) none of the above 5
A) water B) nitrogen C) hydrogen D) phosphorus 6
A) methane-producing bacteria B) cyanobacteria C) algae D) dinosaurs E) humans 7
A) NH3 B) CO2 C) N2 D) H2 O E) O2 8
A) 4.6 billion years old B) 3.5 billion years old C) 2.5 billion years old D) 1.5 billion years old E) 0.5 billion years old 9
A) 4.5 billion years B) 2.7 billion years C) 1 billion years D) 1 million years E) 3 thousand years 10
A) lightning B) ozone C) ultraviolet radiation D) volcanic eruptions E) all of the above were a source of energy 11
A) 4.5 billion years B) 3.5 billion years C) 2.5 billion years D) 1.5 billion years 12
A) our moon B) Jupiter C) Venus D) the sun E) Europa, a moon of Jupiter 13
A) Cambrian Period B) Archean Era C) Phanerozoic Era D) Proterozoic Era 14
A) Proterozoic Era B) Precambrian Period C) Archean Era D) Phanerozoic Era E) Cambrian Period 15
A) prokaryotic cells B) eukaryotic cells C) multicellularity D) photosynthesis E) heredity 16
A) 21% B) 73% C) 1% D) 50% E) 13% 17
A) ozone B) nitrogen C) oxygen D) carbon dioxide E) carbon monoxide 18
A) life evolved on earth from inanimate chemicals B) coacervates were the first type of protocells C) complex organic molecules can form spontaneously under conditions that probably existed on the early earth D) RNA can act as an enzyme and assemble new RNA molecules from RNA templates E) bacteria were the first type of living organism to appear on the earth 19
A) reproduction B) heredity C) metabolism D) movement from place to place E) all of the above are characteristics of all living organisms 20
A) the ability to grow B) a nucleus C) a two-layer boundary D) division by pinching in two E) the ability to carry out chemical reactions 21
A) urea B) hydrogen cyanide C) amino acids D) all of the above E) none of the above 22
A) actual lightning B) UV light C) an electrical spark D) radioactivity E) volcanoes 23
A) eruption of volcanoes B) breakdown of ozone C) breathing of animals D) photosynthesis of plants, algae, and bacteria E) none of the above 24
A) coacervates B) microspheres C) endosymbionts D) micelles E) protobionts 25
A) yes, it probably is B) no, because conditions on earth have changed and are no longer conducive to spontaneous evolution of life 26
A) movement B) sensitivity C) complexity D) all of the above E) none of the above 27
A) evolution B) spontaneous origin C) extraterrestrial origin D) all of the above E) none of the above 28
A) how RNA could have been the first organic molecule B) that simple molecules could not have evolved spontaneously C) the kinds of molecules that could have been produced on the early earth D) that oxygen was required for the formation of molecules on early earth E) the formation of the first cells 29
A) hydrogen gas B) oxygen C) proline D) aspartic acid E) adenine 30
A) 4.5 billion years ago. B) 3.5 billion years ago. C) 1.3 billion years ago. D) 1 million years ago E) 6000 years ago 31
A) heterotroph B) single-celled C) genome composed of RNA D) anaerobic E) prokaryotic 32
A) True B) False 33
A) eukaryotic organisms B) archeabacteria C) early plants called blue-green algae D) protobionts E) eubacteria 34
A) are believed to be fossils from Mars meteorites that fell to earth B) look very similar to present day cyanobacteria C) are larger organisms compared to earlier microfossils D) are simple in structure with no internal membranes E) were originally thought to be the first eukaryotic cells but this has since been disproved 35
A) the origin of all organelles in eukaryotic cells B) how bacterial cells can invade eukaryotic cells and cause disease C) how mitochondria and chloroplasts originated from free-living cells D) how eukaryotic cells consume food E) none of the above 36
A) True B) False 37
A) True B) False
2002 McGraw-Hill Higher Education