Question 1

When humans consume herbivores such as cattle, they occupy which trophic level of a food chain?

Accepted Answer

A) primary consumer 
B) secondary consumer 
C) tertiary consumer 
D) primary producer 
A) primary consumer 
B) secondary consumer 
C) tertiary consumer 
D) primary producer

Question 2

Areas of the ocean that are very cloudy due to large amounts of stirred sediment or eroded soil are likely to

Accepted Answer

A) experience decreased primary productivity levels. 
B) experience increased primary productivity levels. 
C) experience no change in primary productivity levels. 
D) experience an increase in primary productivity levels with a decrease in secondary productivity levels. 
A) experience decreased primary productivity levels. 
B) experience increased primary productivity levels. 
C) experience no change in primary productivity levels. 
D) experience an increase in primary productivity levels with a decrease in secondary productivity levels.

Question 3

Which of the following are examples of primary producers in a beech-maple woodland?

Accepted Answer

A) mosses, grasses, beech trees, maple trees 
B) phytoplankton and seaweed 
C) phytoplankton, reeds, marsh grasses 
D) squirrels, skinks, deer, and opossums 
A) mosses, grasses, beech trees, maple trees 
B) phytoplankton and seaweed 
C) phytoplankton, reeds, marsh grasses 
D) squirrels, skinks, deer, and opossums

Question 4

Other than tropical forests, the most productive biomes tend to be

Accepted Answer

A) estuaries. 
B) deep oceans. 
C) deserts. 
D) tundras. 
A) estuaries. 
B) deep oceans. 
C) deserts. 
D) tundras.

Question 5

The figure below shows the net primary productivity (NPP) in marine biomes around the world. The pattern of NPP in marine ecosystems as shown suggests that

Accepted Answer

A) marine productivity is as sensitive to temperature as terrestrial productivity. 
B) without shade from overhead vegetation, marine productivity typically exceeds that found in terrestrial ecosystems. 
C) marine ecosystems are also limited by sunlight, with the highest productivity at the equator. 
D) most marine productivity results from the input of terrestrially derived nutrients. 
A) marine productivity is as sensitive to temperature as terrestrial productivity. 
B) without shade from overhead vegetation, marine productivity typically exceeds that found in terrestrial ecosystems. 
C) marine ecosystems are also limited by sunlight, with the highest productivity at the equator. 
D) most marine productivity results from the input of terrestrially derived nutrients.

Question 6

If there are 20,000 kcal available in the primary producer level of an ecosystem, how many kcal would be available in the secondary consumer level?

Accepted Answer

A) 200 kcal 
B) 20 kcal 
C) 2 kcal 
D) 2,000 kcal 
A) 200 kcal 
B) 20 kcal 
C) 2 kcal 
D) 2,000 kcal

When humans consume herbivores such as cattle, they occupy which trophic level of a food chain?

Areas of the ocean that are very cloudy due to large amounts of stirred sediment or eroded soil are likely to

Which of the following are examples of primary producers in a beech-maple woodland?

Other than tropical forests, the most productive biomes tend to be

The figure below shows the net primary productivity (NPP) in marine biomes around the world. The pattern of NPP in marine ecosystems as shown suggests that

If there are 20,000 kcal available in the primary producer level of an ecosystem, how many kcal would be available in the secondary consumer level?

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Exam 18: Ecosystems

When humans consume herbivores such as cattle, they occupy which trophic level of a food chain?

Areas of the ocean that are very cloudy due to large amounts of stirred sediment or eroded soil are likely to

Which of the following are examples of primary producers in a beech-maple woodland?

Other than tropical forests, the most productive biomes tend to be

The figure below shows the net primary productivity (NPP) in marine biomes around the world. The pattern of NPP in marine ecosystems as shown suggests that

If there are 20,000 kcal available in the primary producer level of an ecosystem, how many kcal would be available in the secondary consumer level?

The Nature of Science

Chemistry of Life

Life Is Cellular

How Cells Work

Cell Division

Patterns of Inheritance

Chromosomes and Human Genetics

What Genes Are

How Genes Work

Evidence for Evolution

Mechanisms of Evolution

Adaptation and Species

The History of Life

Human Evolution

General Principles of Ecology

Growth of Populations

Communities of Organisms

Homeostasis, Reproduction, and Development

Digestive, Muscular, and Skeletal Systems

Circulatory, Respiratory, Urinary, and Nervous Systems

Endocrine and Immune Systems

Plant Physiology

Applying the Science

Filters