Question 1

In the three-domain system, the eukaryotes are represented

Accepted Answer

A)  only within the domain Eukarya. 
B)  only within the domain Archaea. 
C)  only within the kingdom Protista. 
D)  in all three domains. 
A)  only within the domain Eukarya. 
B)  only within the domain Archaea. 
C)  only within the kingdom Protista. 
D)  in all three domains.

Question 2

The earliest known land plants date to the

Accepted Answer

A)  Pleistocene (late Cenozoic era). 
B)  Ordovician (early Paleozoic era). 
C)  Carboniferous (late Paleozoic era). 
D)  Jurassic (middle Mesozoic era). 
A)  Pleistocene (late Cenozoic era). 
B)  Ordovician (early Paleozoic era). 
C)  Carboniferous (late Paleozoic era). 
D)  Jurassic (middle Mesozoic era).

Question 3

In the axolotl, development is altered. Adult axolotls retain features (external gills and aquatic life) that were juvenile in its ancestors, a phenomenon known as

Accepted Answer

A)  "evo-devo." 
B)  paedomorphosis. 
C)  homology. 
A)  "evo-devo." 
B)  paedomorphosis. 
C)  homology.

Question 4

A spot where two continental plates are sliding past one another may be prone to

Accepted Answer

A)  volcanoes. 
B)  earthquakes. 
C)  tsunamis. 
A)  volcanoes. 
B)  earthquakes. 
C)  tsunamis.

Question 5

Plants and fungi first became established on land during the

Accepted Answer

A)  Archaean. 
B)  Proterozoic. 
C)  Paleozoic. 
D)  Cenozoic. 
A)  Archaean. 
B)  Proterozoic. 
C)  Paleozoic. 
D)  Cenozoic.

Question 6

A disaster such as a meltdown in a nuclear power plant requires close examination of potential impacts on organisms. Which of the following would be useful to biologists in such a situation?

Accepted Answer

A)  Use a molecular clock to time the divergence of species in an area from those far away. 
B)  Measure continental drift to determine if the disaster had accelerated movement of continents. 
C)  Use radiometric dating to determine if new species are forming. 
D)  Examine the mutation rate of species in the area. 
A)  Use a molecular clock to time the divergence of species in an area from those far away. 
B)  Measure continental drift to determine if the disaster had accelerated movement of continents. 
C)  Use radiometric dating to determine if new species are forming. 
D)  Examine the mutation rate of species in the area.

Question 7

The accompanying figure shows the hierarchy of classification of the cow, Bos primigenius.
  
-The greatest number of organisms would be found in

Accepted Answer

A)  A. 
B)  B. 
C)  E. 
D)  I. 
A)  A. 
B)  B. 
C)  E. 
D)  I.

Question 8

Geological evidence indicates that two landmasses, separated by a deep ocean channel, have been moving apart since 45 million years ago. You are studying a group of organisms that has widespread populations on both of the landmasses. Which is the most likely hypothesis for the group's evolutionary history?

Accepted Answer

A)  The group's ancestors were definitely present on the original landmass. 
B)  The group's ancestors cannot have been present on the original landmass. 
C)  If the group's ancestors could not move across the open ocean, it is very likely that they were present on the original landmass. 
D)  The group's ancestors must have independently colonized each of the landmasses from a third location within the past 45 million years. 
A)  The group's ancestors were definitely present on the original landmass. 
B)  The group's ancestors cannot have been present on the original landmass. 
C)  If the group's ancestors could not move across the open ocean, it is very likely that they were present on the original landmass. 
D)  The group's ancestors must have independently colonized each of the landmasses from a third location within the past 45 million years.

Exam 15: Tracing Evolutionary History

In the three-domain system, the eukaryotes are represented

The earliest known land plants date to the

In the axolotl, development is altered. Adult axolotls retain features (external gills and aquatic life) that were juvenile in its ancestors, a phenomenon known as

A spot where two continental plates are sliding past one another may be prone to

Plants and fungi first became established on land during the

A disaster such as a meltdown in a nuclear power plant requires close examination of potential impacts on organisms. Which of the following would be useful to biologists in such a situation?

The accompanying figure shows the hierarchy of classification of the cow, Bos primigenius. -The greatest number of organisms would be found in

Biology: Exploring Life

The Chemical Basis of Life

The Molecules of Cells

A Tour of the Cell

The Working Cell

How Cells Harvest Chemical Energy

Photosynthesis: Using Light to Make Food

The Cellular Basis of Reproduction and Inheritance

Patterns of Inheritance

Molecular Biology of the Gene

How Genes Are Controlled

DNA Technology and Genomics

How Populations Evolve

The Origin of Species

Microbial Life: Prokaryotes and Protists

The Evolution of Plant and Fungal Diversity

The Evolution of Invertebrate Diversity

The Evolution of Vertebrate Diversity

Unifying Concepts of Animal Structure and Function

Nutrition and Digestion

Gas Exchange

Circulation

The Immune System

Control of Body Temperature and Water Balance

Hormones and the Endocrine System

Reproduction and Embryonic Development

Nervous Systems

The Senses

How Animals Move

Plant Structure, Growth, and Reproduction

Plant Nutrition and Transport

Control Systems in Plants

The Biosphere: an Introduction to Earths Diverse Environments

Behavioral Adaptations to the Environment

Population Ecology

Communities and Ecosystems

Conservation Biology

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