Question 1

Which statement provides the best evidence that there is a common genetic code that demonstrates the unity of life?

Accepted Answer

A)  Bees, birds, and bats all have wings and fly. 
B)  Many insects can pollinate only a particular species of plant due to many generations of evolutionary adaptation. 
C)  Through genetic engineering, a gene from a firefly can be inserted into a bacterium to make it glow. 
A)  Bees, birds, and bats all have wings and fly. 
B)  Many insects can pollinate only a particular species of plant due to many generations of evolutionary adaptation. 
C)  Through genetic engineering, a gene from a firefly can be inserted into a bacterium to make it glow.

Question 2

Scientists interested in knowing the best way to restore an area after a temporary road was built through it completed a study comparing two treatments: (1) restoring the contour of an area so that there was no longer a depression or cut-through where the road was previously and (2) simply abandoning the area to allow vegetation to return on its own. They wanted to know whether either or both of these treatments would return the aboveground vegetation and the belowground soil properties to their original state, as seen in a similar area where there had never been a road.
-The researchers concluded, "These findings support the prediction that recontouring accelerates the rehabilitation of key ecohydrologica properties toward reference dynamics." What does this mean?

Accepted Answer

A)  Recontouring makes the vegetation in the area grow out of control. 
B)  Recontouring allows the water properties of the system to return to normal faster. 
C)  Abandonment is the better treatment for restoration. 
D)  Their original prediction that recontouring would produce greater plant diversity was supported. 
A)  Recontouring makes the vegetation in the area grow out of control. 
B)  Recontouring allows the water properties of the system to return to normal faster. 
C)  Abandonment is the better treatment for restoration. 
D)  Their original prediction that recontouring would produce greater plant diversity was supported.

Question 3

Which model is best studied through a systems approach?

Accepted Answer

A)  model of O2/CO2 exchange in a leaf
  
B)  model of arrangements of atoms in a molecule
  
C)  model of the biogeochemical cycling of nutrients
  
D)  model of skin color inheritance
  
A)  model of O2/CO2 exchange in a leaf
  
B)  model of arrangements of atoms in a molecule
  
C)  model of the biogeochemical cycling of nutrients
  
D)  model of skin color inheritance

Question 4

You notice that over the past month, many students on campus have started wearing a new style of school sweatshirt. You think to yourself that perhaps the bookstore has recently started selling this new sweatshirt style. This is an example of a(n)

Accepted Answer

A)  experimental question. 
B)  type of observation. 
C)  hypothesis. 
D)  experiment. 
A)  experimental question. 
B)  type of observation. 
C)  hypothesis. 
D)  experiment.

Question 5

Which statement is not an example of evolution that has resulted from human activity?

Accepted Answer

A)  Many strains of bacteria are now resistant to some commonly used antibiotics. 
B)  Like certain other crops, domesticated strawberries are larger than wild strawberries. 
C)  Because of hunting, organisms such as bears and wolves are fewer in number. 
D)  Some insect species are now resistant to pesticides. 
A)  Many strains of bacteria are now resistant to some commonly used antibiotics. 
B)  Like certain other crops, domesticated strawberries are larger than wild strawberries. 
C)  Because of hunting, organisms such as bears and wolves are fewer in number. 
D)  Some insect species are now resistant to pesticides.

Question 6

This graph shows an increase in the number of species of pesticide-resistant insects from 1900 to 2000.
-What is the best title for this graph?

Accepted Answer

A)  Insect numbers over time 
B)  Pesticide use over time 
C)  Species of insects resistant to pesticides over time 
D)  Number of insect offspring showing resistance to pesticides over time 
A)  Insect numbers over time 
B)  Pesticide use over time 
C)  Species of insects resistant to pesticides over time 
D)  Number of insect offspring showing resistance to pesticides over time

Question 7

Watching salt crystals form as ocean water evaporates, a student says, "Look-more and more crystals are appearing. The ocean water is alive!" Which statement is an accurate evaluation of the student's remark?

Accepted Answer

A)  The student is correct: Crystals are ordered structures and they are reproducing, so the ocean water is alive. 
B)  The student is correct because crystals are formed by processing energy from the sun to create new structures, so ocean water is alive. 
C)  The student is incorrect because the solution is processing energy from the sun rather than gaining energy from other organisms, so the ocean water is not alive. 
D)  The student is incorrect because all of the crystals reproduce the same kind of crystals with no variation to provide adaptation, so the ocean water is not alive. 
A)  The student is correct: Crystals are ordered structures and they are reproducing, so the ocean water is alive. 
B)  The student is correct because crystals are formed by processing energy from the sun to create new structures, so ocean water is alive. 
C)  The student is incorrect because the solution is processing energy from the sun rather than gaining energy from other organisms, so the ocean water is not alive. 
D)  The student is incorrect because all of the crystals reproduce the same kind of crystals with no variation to provide adaptation, so the ocean water is not alive.

Exam 1: Biology: Exploring Life

Which statement provides the best evidence that there is a common genetic code that demonstrates the unity of life?

Which model is best studied through a systems approach?

You notice that over the past month, many students on campus have started wearing a new style of school sweatshirt. You think to yourself that perhaps the bookstore has recently started selling this new sweatshirt style. This is an example of a(n)

Which statement is not an example of evolution that has resulted from human activity?

This graph shows an increase in the number of species of pesticide-resistant insects from 1900 to 2000. -What is the best title for this graph?

Watching salt crystals form as ocean water evaporates, a student says, "Look-more and more crystals are appearing. The ocean water is alive!" Which statement is an accurate evaluation of the student's remark?

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

Tracing Evolutionary History

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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