Chapter 14:
The History of Life
1.
Which group of organisms is believed to have been the earliest to evolve?
a.
cyanobacteria
b.
land plants
c.
aquatic dinosaurs
d.
mammals
Hint
2.
According to Figure 14-4, the correct chronological order of organisms as they develop are _____.
a.
dinosaurs, jawed fish, birds, prokaryotes
b.
jawed fish, dinosaurs, prokaryotes, birds
c.
prokaryotes, jawed fish, dinosaurs, birds
d.
birds, dinosaurs, jawed fish, prokaryotes
Hint
3.
According to one theory, the first prokaryotes probably obtained their food _____.
a.
by consuming organic molecules available in their environment
b.
through the synthesis of organic molecules from inorganic molecules
c.
through a combination of photosynthesis and aerobic respiration
d.
by eating carbohydrates formed by autotrophs
Hint
4.
According to Figure 14-4, in how many eras have mammals existed?
a.
5
b.
4
c.
2
d.
7
Hint
5.
Which event contributed most directly to the evidence of aerobic organisms?
a.
the presence of organisms able to carry on photosynthesis
b.
an increase in the concentration of methane in the ancient atmosphere
c.
an increase in the number of organisms carrying on fermentation
d.
a decrease in the sun's light intensity
Hint
6.
Humans are thought to have evolved during the _____ Era.
a.
Paleozoic
b.
Precambrian
c.
Mesozoic
d.
Cenozoic
Hint
7.
According to Figure 14-4, what was the earliest form of multicellular life on Earth?
a.
invertebrates
b.
reptiles
c.
land plants
d.
fish
Hint
8.
Which of the following fossils are not found in sedimentary rock?
a.
petrified wood
b.
amber
c.
imprints
d.
frozen mammoths
Hint
9.
The Geologic Time Scale begins at the formation of Earth approximately _____ years ago.
a.
4.6 thousand
b.
4.6 billion
c.
46 million
d.
4.6 million
Hint
10.
Scientists agree that two developments must have occurred for life to come into being: the formation of simple organic molecules important to life and _____.
a.
appearance of amino acids, monosaccharides, and lipids
b.
an atmosphere rich in water vapor, oxygen, and ATP
c.
development of prokaryotic cells in early oceans
d.
organization of molecules into complex organic molecules
Hint
