AP Biology (Mader), 11th Edition

Chapter 18: Origin and History of Life

Post-Test

1
The primitive atmosphere had little, if any _____.
A)water vapor
B)free oxygen
C)carbon dioxide
D)nitrogen
2
When O2 attaches to organic molecules, _____.
A)they form large polymers
B)it prevents them from joining to form larger molecules
C)they become radioactive
D)they dissolve in water more easily
3
Evidence that organic molecules could be synthesized from the inorganic molecules methane, carbon dioxide, ammonia, hydrogen gas, heat, and energy was provided by _____.
A)Miller
B)Cuvier
C)Wallace
D)Watson and Crick
4
The earliest formed organic molecules would have _____.
A)been reduced by free oxygen
B)decayed
C)accumulated in the oceans
D)disappeared shortly after being formed
5
If primordial earth lacked free O2, as is speculated, then the first living organisms must have ______.
A)been photosynthetic
B)formed on land
C)anaerobic metabolism
D)practiced cellular respiration
6
Miller's mixture resembling a strong reducing atmosphere, heat and an electric spark produced _____.
A)DNA
B)the first cells
C)a variety of amino acids
D)ribosomes
7
Mass extinctions were caused by:
A)Bolides
B)Continental drift
C)Genetic drift
D)Global warming
8
The RNA-first hypothesis is supported by _____.
A)RNA viruses that have reverse transcription
B)the fossil record
C)comparing the DNA of humans and primates
D)the features of mitochondria, which are similar to those of prokaryotic cells
9
The polymerization of polypeptides may have been facilitated by _____, which attracts small organic molecules and contains iron and zinc.
A)microspheres
B)lipsomes
C)proteinoids
D)clay
10
Proteinoids added to water formed _____.
A)liposomes
B)plasma membranes
C)microspheres
D)complex cells
11
Cretaceous clay contains an abnormally high amount of _____, an element that is rare in the earth's crust but more common in asteroids and meteorites.
A)lead
B)copper
C)sulfur
D)iridium
12
Flowering plants first appeared in the:
A)Permian
B)Jurassic
C)Precambrian
D)Cretaceous
13
Placental mammals first appeared during the _____ period.
A)Cretaceous
B)Carboniferous
C)Devonian
D)Pleistocene
14
The mass extinction at the end of the _____ period may have benefitted the dinosaurs because that is when the first of the giant dinosaurs took charge of the land.
A)Cretaceous
B)Triassic
C)Ordovician
D)None of these
15
The place where two plates meet and slide past each other is called a _____.
A)subduction zone
B)volcano
C)ocean trench
D)transform boundary
16
The time period during which life arose and the first cells came into existence is the _____.
A)Jurassic
B)Carboniferous
C)Precambrian
D)Paleocene
17
The great _____ forests turned into the coal we use today to fuel our modern society.
A)Precambrian
B)Carboniferous
C)Silurian
D)Devonian
18
The concept that the Earth's crust is divided into a number of fairly rigid plates whose movements account for continental drift is:
A)Paleontology
B)Meteorology
C)Plate tectonics
D)Driftology
19
When two continents collide a(n) _____ often forms.
A)chain of volcanic islands
B)ocean trench
C)mountain range
D)ocean ridge
20
Jawless fishes first appeared during the _____ period.
A)Ordovician
B)Carboniferous
C)Devonian
D)Pleistocene
Glencoe Online Learning CenterScience HomeProduct InfoSite MapContact Us

The McGraw-Hill CompaniesGlencoe

Please read our Terms of Use and Privacy Notice before you explore our Web site. To report a technical problem with this Web site, please contact the Web Producer.