Chapter 17:
The Origin of Life
Practice Test
1.
Evidence shows that about 15 billion years ago, the whole universe was condensed into one mass that exploded. What is that explosion known as?
a.
The Origin of Life
b.
The Big Bang
c.
The Hubble Space Telescope
d.
The Supernova
Hint
2.
Which of the following pairs of organisms first appeared on Earth during the Paleozoic era?
a.
eukaryotes and prokaryotes
b.
primates and humans
c.
reptiles and amphibians
d.
dinosaurs and flowering plants
Hint
3.
What is an organism that has a mutually beneficial symbiotic relationship with a host organism while living in the host?
a.
stromatolite
b.
hydrothermal organism
c.
methanogen
d.
endosymbiont
Hint
4.
Which of these statements is NOT a part of the heterotroph hypothesis for the origin of life?
a.
Some processes organized polymers into a system that could replicate itself.
b.
Some processes assembled small organic molecules into polymers.
c.
There was a supply of organic molecules, produced by nonbiological processes.
d.
Life originated by unknown means on Earth.
Hint
5.
What did Ponnamperuma find when he examined the Murchison meteorite?
a.
DNA
b.
ozone
c.
amino acids
d.
carbon dioxide
Hint
6.
What are cracks in the ocean floor where temperatures are high enough to support life?
a.
sea mounts
b.
trenches
c.
hydrothermal vents
d.
continental shelves
Hint
7.
What scientist studied starlight and discovered that the universe is expanding?
a.
Edwin Hubble
b.
J.B.S. Haldane
c.
Stanley Miller
d.
Alexander Oparin
Hint
8.
What materials did Miller and Urey place into their apparatus to simulate conditions on early Earth?
a.
methane, hydrogen, ammonia gases, water vapor
b.
methane, carbon dioxide, hydrogen, water
c.
nitrogen, hydrogen, carbon, water
d.
oxygen, water, hydrogen, carbon dioxide
Hint
9.
What are anaerobic bacteria that obtain energy by using carbon dioxide to oxidize hydrogen?
a.
metamorphic organisms
b.
stromatolites
c.
methanogens
d.
eukaryotes
Hint
10.
During which era of geologic time did primates first appear?
a.
Precambrian
b.
Paleozoic
c.
Mesozoic
d.
Cenozoic
Hint
