Question 1

What is the third trophic level of a food chain?

Accepted Answer

A)  primary consumers 
B)  tertiary consumers 
C)  autotrophs 
D)  secondary consumers 
E)  primary producers 
A)  primary consumers 
B)  tertiary consumers 
C)  autotrophs 
D)  secondary consumers 
E)  primary producers

Question 2

Approximately what proportion of the radiant energy entering an ecosystem is used in photosynthesis?

Accepted Answer

A)  1% 
B)  4% 
C)  10% 
D)  50% 
E)  75% 
A)  1% 
B)  4% 
C)  10% 
D)  50% 
E)  75%

Question 3

In the African savanna, fire helps maintain the dominant vegetation. 
____________________

Accepted Answer

A) True 
 B)False

Question 4

Wind drives the ocean's currents and __________ drives wind.

Accepted Answer

A)  the Coriolis Effect 
B)  precipitation 
C)  biogeochemical cycles 
D)  the sun 
E)  evaporation 
A)  the Coriolis Effect 
B)  precipitation 
C)  biogeochemical cycles 
D)  the sun 
E)  evaporation

Question 5

What is the least likely effect of fires on organisms?

Accepted Answer

A)  Fire stimulates the germination of seeds. 
B)  Fire's combustion frees minerals locked in organic matter. 
C)  Fire instigates the growth of shade-tolerant plants. 
D)  Fire encourages the growth of shade-intolerant plants. 
E)  Fire increases soil erosion. 
A)  Fire stimulates the germination of seeds. 
B)  Fire's combustion frees minerals locked in organic matter. 
C)  Fire instigates the growth of shade-tolerant plants. 
D)  Fire encourages the growth of shade-intolerant plants. 
E)  Fire increases soil erosion.

Question 6

Clearly differentiate between the following terms: gross primary productivity and net primary productivity.

Accepted Answer

Gross primary productivity (GPP is the r

Question 7

The buildup of a toxin in an organism's body is called biological magnification. 
____________________

Accepted Answer

A) True 
 B)False

Question 8

One element that does not cycle into the atmosphere is phosphorus . 
____________________

Accepted Answer

A) True 
 B)False

Question 9

Nitrogen fixation is the process by which gaseous nitrogen is converted to nitrate . 
____________________

Accepted Answer

A) True 
 B)False

Question 10

The Coriolis effect results in the:

Accepted Answer

A)  rising of air at the equator. 
B)  falling of air near the poles. 
C)  deflection of moving air due to the rotation of Earth. 
D)  altitudinal variations in temperature. 
E)  release of heat once radiation strikes the Earth's surface.. 
A)  rising of air at the equator. 
B)  falling of air near the poles. 
C)  deflection of moving air due to the rotation of Earth. 
D)  altitudinal variations in temperature. 
E)  release of heat once radiation strikes the Earth's surface..

Question 11

Which statement about food chains is FALSE?

Accepted Answer

A)  Owl consumption of mice benefits grasses. 
B)  Mice consumption of grasses is harmful to the grasses. 
C)  Owl consumption of mice harms grasses. 
D)  Owls are acting as secondary consumers when they eat mice. 
E)  Mice are herbivores. 
A)  Owl consumption of mice benefits grasses. 
B)  Mice consumption of grasses is harmful to the grasses. 
C)  Owl consumption of mice harms grasses. 
D)  Owls are acting as secondary consumers when they eat mice. 
E)  Mice are herbivores.

Exam 55: Ecosystems and the Biosphere

What is the third trophic level of a food chain?

Approximately what proportion of the radiant energy entering an ecosystem is used in photosynthesis?

In the African savanna, fire helps maintain the dominant vegetation. ____________________

Wind drives the ocean's currents and __________ drives wind.

What is the least likely effect of fires on organisms?

Clearly differentiate between the following terms: gross primary productivity and net primary productivity.

The buildup of a toxin in an organism's body is called biological magnification. ____________________

One element that does not cycle into the atmosphere is phosphorus . ____________________

Nitrogen fixation is the process by which gaseous nitrogen is converted to nitrate . ____________________

The Coriolis effect results in the:

Which statement about food chains is FALSE?

A View of Life

Atoms and Molecules the Chemical Basis of Life

The Chemistry of Life Organic Compounds

Organization of the Cell

Biological Membranes

Cell Communication

Energy and Metabolism

How Cells Make Atp Energy-Releasing Pathways

Photosynthesis Capturing Light Energy

Chromosomes, Mitosis, and Meiosis

The Basic Principles of Heredity

Dna the Carrier of Genetic Information

Gene Expression

Gene Regulation

Dna Technology and Genomics

Human Genetics and the Human Genome

Developmental Genetics

Introduction to Darwinian Evolution

Evolutionary Change in Populations

Speciation and Macroevolution

The Origin and Evolutionary History of Life

The Evolution of Primates

Understanding Diversity Systematics

Viruses and Subviral Agents

Bacteria and Archaea

Protists

Seedless Plants

Seed Plants

The Fungi

An Introduction to Animal Diversity

Sponges, Cnidarians, Ctenophores, and Protostomes

The Deuterostomes

Plant Structure Growth and Development

Leaf Structure and Function

Stem Structure and Transport

Roots and Mineral Nutrition

Reproduction in Flowering Plants

Plant Developmental Responses to External and Internal Signals

Animal Structure and Function an Introduction

Protection Support and Movement

Neural Signaling

Neural Regulation

Sensory Systems

Internal Transport

The Immune System Internal Defense

Gas Exchange

Processing Food and Nutrition

Osmoregulation and Disposal of Metabolic Wastes

Endocrine Regulation

Reproduction

Animal Development

Animal Behavior

Introduction to Ecology Population Ecology

Community Ecology

Ecology and the Geography of Life

Biological Diversity and Conservation Biology

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