Question 1

Which of the following statements is true?

Accepted Answer

A) The temperate deciduous forest is composed of a high diversity of deciduous trees that lose their leaves in the fall because of low soil fertility. 
B) Agriculture is often not very successful in a tropical forest because of the poor soils. 
C) The high species diversity of a tropical rain forest is supported by a high diversity of soil organisms, high soil fertility, and high rainfall. 
D) Agriculture is often not very successful in grasslands because of the poor soils. 
A) The temperate deciduous forest is composed of a high diversity of deciduous trees that lose their leaves in the fall because of low soil fertility. 
B) Agriculture is often not very successful in a tropical forest because of the poor soils. 
C) The high species diversity of a tropical rain forest is supported by a high diversity of soil organisms, high soil fertility, and high rainfall. 
D) Agriculture is often not very successful in grasslands because of the poor soils. B

Question 2

The ozone layer is found in which layer of the atmosphere?

Accepted Answer

stratosphere

Question 3

Areas near the equator tend to be wetter because of the combination of ocean evaporation and rising air.

Accepted Answer

A) True 
 B)False  True

Question 4

Which of the following best describes a biome?

Accepted Answer

A) large terrestrial regions with similar climate and similar types of plant life 
B) small terrestrial regions with similar climate and the similar communities of organisms 
C) three different classes of ecosystems based on high, medium, or low rainfall 
D) three different classes of ecosystems based high, medium, or low temperature 
A) large terrestrial regions with similar climate and similar types of plant life 
B) small terrestrial regions with similar climate and the similar communities of organisms 
C) three different classes of ecosystems based on high, medium, or low rainfall 
D) three different classes of ecosystems based high, medium, or low temperature

Question 5

The Venus flytrap is a photosynthetic plant that can trap and eat small insects.The Venus flytrap is a:

Accepted Answer

A) secondary consumer. 
B) producer. 
C) tertiary consumer. 
D) both a producer and secondary consumer. 
E) both a producer and tertiary consumer. 
A) secondary consumer. 
B) producer. 
C) tertiary consumer. 
D) both a producer and secondary consumer. 
E) both a producer and tertiary consumer.

Question 6

Hot weather is common to all deserts.

Accepted Answer

A) True 
 B)False

Question 7

The biotic factors in an ecosystem include all organic materials,living and nonliving.

Accepted Answer

A) True 
 B)False

Question 8

An animal that exclusively eats grasses would be both a primary consumer and an herbivore.

Accepted Answer

A) True 
 B)False

Question 9

About 99 percent of the UV radiation that the sun showers on Earth is blocked by:

Accepted Answer

A) stratospheric ozone. 
B) stratospheric greenhouse gases, such as CO₂ and water. 
C) the magnetic fields that surround the Earth. 
D) tropospheric greenhouse gases, such as CO₂ and water. 
E) ground level ozone. 
A) stratospheric ozone. 
B) stratospheric greenhouse gases, such as CO₂ and water. 
C) the magnetic fields that surround the Earth. 
D) tropospheric greenhouse gases, such as CO₂ and water. 
E) ground level ozone.

Question 10

The North American prairie and the Russian "steppes" are both temperate grasslands.

Accepted Answer

A) True 
 B)False

Question 11

Earth is generally hotter at the equator because:

Accepted Answer

A) the sun shines over the equator evenly through the year, rather than seasonally. 
B) Earth's rotation on a tilted axis increases seasonality. 
C) the natural oval shape of Earth places the equator nearer the sun than the poles. 
D) the Earth receives the most direct sunlight over the course of the year at the equator. 
E) Earth's rotation on a tilted axis creates an atmospheric drag at the equator, warming the air. 
A) the sun shines over the equator evenly through the year, rather than seasonally. 
B) Earth's rotation on a tilted axis increases seasonality. 
C) the natural oval shape of Earth places the equator nearer the sun than the poles. 
D) the Earth receives the most direct sunlight over the course of the year at the equator. 
E) Earth's rotation on a tilted axis creates an atmospheric drag at the equator, warming the air.

Question 12

As a general rule,for each jump up in trophic level,about how much does the available energy drop?

Accepted Answer

A) 10 percent 
B) 30 percent 
C) 50 percent 
D) 90 percent 
E) practically 100 percent 
A) 10 percent 
B) 30 percent 
C) 50 percent 
D) 90 percent 
E) practically 100 percent

Question 13

Decomposer fungi are examples of a:

Accepted Answer

A) producer. 
B) primary consumer. 
C) secondary consumer. 
D) tertiary consumer. 
E) detritivore. 
A) producer. 
B) primary consumer. 
C) secondary consumer. 
D) tertiary consumer. 
E) detritivore.

Question 14

Taiga is characterized by:

Accepted Answer

A) pines as an early successional stage before deciduous trees, rich understory, and cold climate. 
B) few ecological dominants, short growing seasons, and sparse deciduous trees. 
C) poor drainage over permafrost, few to no trees, and short growing season; shrubs and sedges dominate. 
D) permafrost, short growing seasons, and sparse coniferous trees. 
E) coniferous forest, low tree diversity, and no permafrost. 
A) pines as an early successional stage before deciduous trees, rich understory, and cold climate. 
B) few ecological dominants, short growing seasons, and sparse deciduous trees. 
C) poor drainage over permafrost, few to no trees, and short growing season; shrubs and sedges dominate. 
D) permafrost, short growing seasons, and sparse coniferous trees. 
E) coniferous forest, low tree diversity, and no permafrost.

Question 15

What is the term for movement of water and nutrients between biotic and abiotic portions of an ecosystem?

Accepted Answer

A) bio-cycling 
B) biogeochemical cycling 
C) decomposer-detrital cycling 
D) energy cycling 
A) bio-cycling 
B) biogeochemical cycling 
C) decomposer-detrital cycling 
D) energy cycling

Question 16

About how much of the atmosphere is composed of nitrogen?

Accepted Answer

A) 1 percent 
B) 23 percent 
C) 52 percent 
D) 78 percent 
A) 1 percent 
B) 23 percent 
C) 52 percent 
D) 78 percent

Question 17

Oligotrophic lakes have:

Accepted Answer

A) low oxygen concentrations in the summer. 
B) clear water with high production. 
C) clear water with low nutrient levels. 
D) high nutrient levels and high production by phytoplankton. 
E) the largest numbers and diversity of organisms. 
A) low oxygen concentrations in the summer. 
B) clear water with high production. 
C) clear water with low nutrient levels. 
D) high nutrient levels and high production by phytoplankton. 
E) the largest numbers and diversity of organisms.

Question 18

Which of the following is a biotic factor of an ecosystem?

Accepted Answer

A) soil minerals 
B) water 
C) oxygen 
D) bacteria 
A) soil minerals 
B) water 
C) oxygen 
D) bacteria

Question 19

An astounding 20 percent of the world's freshwater runoff comes from what single source?

Accepted Answer

A) icebergs 
B) aquifer discharge 
C) the Great Lakes 
D) the Mediterranean Sea 
E) the Amazon River 
A) icebergs 
B) aquifer discharge 
C) the Great Lakes 
D) the Mediterranean Sea 
E) the Amazon River

Question 20

Which of the following statements is true?

Accepted Answer

A) Glaciers make up about 20 percent of Earth's freshwater pool. 
B) An aquifer is a pool of freshwater perched over the base groundwater that is accessible by humans. 
C) Transpiration moves saltwater to the atmosphere and then to freshwater pools on Earth's surface. 
D) About 2.5 percent of Earth's water is fresh at any given time. 
E) The process of respiration is critical for maintaining the freshwater pools on Earth's surface. 
A) Glaciers make up about 20 percent of Earth's freshwater pool. 
B) An aquifer is a pool of freshwater perched over the base groundwater that is accessible by humans. 
C) Transpiration moves saltwater to the atmosphere and then to freshwater pools on Earth's surface. 
D) About 2.5 percent of Earth's water is fresh at any given time. 
E) The process of respiration is critical for maintaining the freshwater pools on Earth's surface.

Exam 36: An Interactive Living World 3: Ecosystems and Biomes

Which of the following statements is true?

The ozone layer is found in which layer of the atmosphere?

Areas near the equator tend to be wetter because of the combination of ocean evaporation and rising air.

Which of the following best describes a biome?

The Venus flytrap is a photosynthetic plant that can trap and eat small insects.The Venus flytrap is a:

Hot weather is common to all deserts.

The biotic factors in an ecosystem include all organic materials,living and nonliving.

An animal that exclusively eats grasses would be both a primary consumer and an herbivore.

About 99 percent of the UV radiation that the sun showers on Earth is blocked by:

The North American prairie and the Russian "steppes" are both temperate grasslands.

Earth is generally hotter at the equator because:

As a general rule,for each jump up in trophic level,about how much does the available energy drop?

Decomposer fungi are examples of a:

Taiga is characterized by:

What is the term for movement of water and nutrients between biotic and abiotic portions of an ecosystem?

About how much of the atmosphere is composed of nitrogen?

Oligotrophic lakes have:

Which of the following is a biotic factor of an ecosystem?

An astounding 20 percent of the world's freshwater runoff comes from what single source?

Which of the following statements is true?

Science As a Way of Learning: a Guide to the Natural World

Fundamental Building Blocks: Chemistry, water, and Ph

Lifes Components: Biological Molecules

Lifes Home: the Cell

Lifes Border: the Plasma Membrane

Lifes Mainspring: an Introduction to Energy

Vital Harvest: Deriving Energy From Food

The Green Worlds Gift: Photosynthesis

The Links in Lifes Chain: Genetics and Cell Division

Preparing for Sexual Reproduction: Meiosis

The First Geneticist: Mendel and His Discoveries

Units of Heredity: Chromosomes and Inheritance

Passing on Lifes Information: Dna Structure and Replication

How Proteins Are Made: Genetic Transcription, translation, and Regulation

The Future Isnt What It Used to Be: Biotechnology

An Introduction to Evolution: Charles Darwin, evolutionary Thought, and the Evidence for Evolution

The Means of Evolution: Microevolution

The Outcomes of Evolution: Macroevolution

A Slow Unfolding: the History of Life on Earth

Arriving Late,traveling Far: the Evolution of Human Beings

Viruses,bacteria,archaea,and Protists: the Diversity of Life 1

Fungi: the Diversity of Life 2

Animals: the Diversity of Life 3

Plants: the Diversity of Life 4

The Angiosperms: Form and Function in Flowering Plants

Body Support and Movement: the Integumentary, skeletal, and Muscular Systems

Communication and Control 1: the Nervous System

Communication and Control 2: the Endocrine System

Defending the Body: the Immune System

Transport and Exchange 1: Blood and Breath

Transport and Exchange 2: Digestion, nutrition, and Elimination

An Amazingly Detailed Script: Animal Development

How the Baby Came to Be: Human Reproduction

An Interactive Living World 1: Populations in Ecology

An Interactive Living World 2: Communities in Ecology

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