Question 1

Which ecosystem would have the lowest percentage of total net primary productivity?

Accepted Answer

A) open ocean 
B) tundra 
C) swamp and march 
D) savanna 
A) open ocean 
B) tundra 
C) swamp and march 
D) savanna

Question 2

What do we often follow when studying ecosystems?

Accepted Answer

A) the movement of energy from one level to another 
B) the movement of chaicals from one level to another 
C) the movement of organisms from one area to another 
D) the movement of predators from one area to another 
A) the movement of energy from one level to another 
B) the movement of chaicals from one level to another 
C) the movement of organisms from one area to another 
D) the movement of predators from one area to another

Question 3

What was demonstrated by the Hubbard Brook Watershed experiment?

Accepted Answer

A) that deforestation decreases flooding and the fertility of ecosystems 
B) that deforestation increases flooding and decreases the fertility of ecosystems 
C) that deforestation increases flooding and the fertility of ecosystems 
D) that deforestation decreases flooding and increases the fertility of ecosystems 
A) that deforestation decreases flooding and the fertility of ecosystems 
B) that deforestation increases flooding and decreases the fertility of ecosystems 
C) that deforestation increases flooding and the fertility of ecosystems 
D) that deforestation decreases flooding and increases the fertility of ecosystems

Question 4

What is the definition of the standing crop biomass?

Accepted Answer

A) number of plant species present 
B) dry weight of the plants 
C) amount of sunlight absorbed by the plants 
D) productivity of the plants 
A) number of plant species present 
B) dry weight of the plants 
C) amount of sunlight absorbed by the plants 
D) productivity of the plants

Question 5

In this chapter, what steps have we learned to help the environment?

Accepted Answer

We have learned that we should work hard

Question 6

How would you calculate the net primary productivity of an ecosystem?

Accepted Answer

You would subtract the energy

Question 7

Match the term that corresponds to the appropriate lettered box in the image.  
-tertiary consumers

Accepted Answer

The answer of Match the term that corresponds to the...

Question 8

Match each description with the appropriate scientific term.
-rate at which a plant converts the Sun's energy into chemical energy

Accepted Answer

A) biogeochemical cycles 
B) ecological efficiency 
C) ecological pyramid 
D) generalized compartment model 
E) gross primary productivity
F)limiting nutrient
G)net primary productivity
H)pyramid of biomass
I)secondary productivity
J)simulation modelling
K)standing crop biomass
L)trophic cascade 
A) biogeochemical cycles 
B) ecological efficiency 
C) ecological pyramid 
D) generalized compartment model 
E) gross primary productivity
F)limiting nutrient
G)net primary productivity
H)pyramid of biomass
I)secondary productivity
J)simulation modelling
K)standing crop biomass
L)trophic cascade

Question 9

Match each description with the appropriate scientific term.
-element in short supply

Accepted Answer

A) biogeochemical cycles 
B) ecological efficiency 
C) ecological pyramid 
D) generalized compartment model 
E) gross primary productivity
F)limiting nutrient
G)net primary productivity
H)pyramid of biomass
I)secondary productivity
J)simulation modelling
K)standing crop biomass
L)trophic cascade 
A) biogeochemical cycles 
B) ecological efficiency 
C) ecological pyramid 
D) generalized compartment model 
E) gross primary productivity
F)limiting nutrient
G)net primary productivity
H)pyramid of biomass
I)secondary productivity
J)simulation modelling
K)standing crop biomass
L)trophic cascade

Question 10

What is the main natural source of phosphorus?

Accepted Answer

A) Earth's crust 
B) fertilizer 
C) guano 
D) legumes 
A) Earth's crust 
B) fertilizer 
C) guano 
D) legumes

Question 11

Which of the following would help reduce the amount of greenhouse gases in the atmosphere?

Accepted Answer

A) reducing water usage 
B) driving to work 
C) using electrical heat in homes 
D) reducing emissions from factories 
A) reducing water usage 
B) driving to work 
C) using electrical heat in homes 
D) reducing emissions from factories

Question 12

Energy losses are multiplied in successive energy transfers in a food web.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following is among the disadvantages of a simulation model of an ecosystem?

Accepted Answer

A) It does not take into account water availability. 
B) It does not take into account nutrient availability. 
C) It does not take into account interactions between organisms. 
D) It may not be accurate. 
A) It does not take into account water availability. 
B) It does not take into account nutrient availability. 
C) It does not take into account interactions between organisms. 
D) It may not be accurate.

Question 14

How many energy transfers away from the Sun are herbivores?

Accepted Answer

A) four 
B) three 
C) two 
D) one 
A) four 
B) three 
C) two 
D) one

Question 15

Which of the following make up the largest reservoir of carbon?

Accepted Answer

A) rocks 
B) producers 
C) consumers 
D) nutrients in soil 
A) rocks 
B) producers 
C) consumers 
D) nutrients in soil

Question 16

What is the difference between biomes and ecozones?

Accepted Answer

A) Biomes are characteristic of specific climatic and topographic situations, while ecozones are generally reflected by their dominant biotas. 
B) Ecozones are characteristic of specific climatic and topographic situations, while biomes are generally reflected by their dominant biotas. 
C) Biomes are larger than ecozones. 
D) Biomes are the same as ecozones. 
A) Biomes are characteristic of specific climatic and topographic situations, while ecozones are generally reflected by their dominant biotas. 
B) Ecozones are characteristic of specific climatic and topographic situations, while biomes are generally reflected by their dominant biotas. 
C) Biomes are larger than ecozones. 
D) Biomes are the same as ecozones.

Question 17

What helps to put the nature of ecosystems in context?

Accepted Answer

A) variations in the scale of connections 
B) variations in the scale of interactions 
C) stability in the scale of connections 
D) stability in the scale of interactions 
A) variations in the scale of connections 
B) variations in the scale of interactions 
C) stability in the scale of connections 
D) stability in the scale of interactions

Question 18

Which of the following plants CANNOT participate in nitrogen fixation?

Accepted Answer

A) peanuts 
B) clover 
C) wheat 
D) roses 
A) peanuts 
B) clover 
C) wheat 
D) roses

Question 19

Match each description with the appropriate scientific term.
-energy transfer from producers to consumers

Accepted Answer

A) biogeochemical cycles 
B) ecological efficiency 
C) ecological pyramid 
D) generalized compartment model 
E) gross primary productivity
F)limiting nutrient
G)net primary productivity
H)pyramid of biomass
I)secondary productivity
J)simulation modelling
K)standing crop biomass
L)trophic cascade 
A) biogeochemical cycles 
B) ecological efficiency 
C) ecological pyramid 
D) generalized compartment model 
E) gross primary productivity
F)limiting nutrient
G)net primary productivity
H)pyramid of biomass
I)secondary productivity
J)simulation modelling
K)standing crop biomass
L)trophic cascade

Question 20

Compare the length of day with the intensity of sunlight near the equator. How do they differ?

Accepted Answer

A) Sunlight is most intense and day length is most variable. 
B) Sunlight is most intense and day length is least variable. 
C) Sunlight is least intense and day length is most variable. 
D) Sunlight is least intense and day length is least variable. 
A) Sunlight is most intense and day length is most variable. 
B) Sunlight is most intense and day length is least variable. 
C) Sunlight is least intense and day length is most variable. 
D) Sunlight is least intense and day length is least variable.

Exam 31: Ecosystems

Which ecosystem would have the lowest percentage of total net primary productivity?

What do we often follow when studying ecosystems?

What was demonstrated by the Hubbard Brook Watershed experiment?

What is the definition of the standing crop biomass?

In this chapter, what steps have we learned to help the environment?

How would you calculate the net primary productivity of an ecosystem?

Match the term that corresponds to the appropriate lettered box in the image. -tertiary consumers

Match each description with the appropriate scientific term. -rate at which a plant converts the Sun's energy into chemical energy

Match each description with the appropriate scientific term. -element in short supply

What is the main natural source of phosphorus?

Which of the following would help reduce the amount of greenhouse gases in the atmosphere?

Energy losses are multiplied in successive energy transfers in a food web.

Which of the following is among the disadvantages of a simulation model of an ecosystem?

How many energy transfers away from the Sun are herbivores?

Which of the following make up the largest reservoir of carbon?

What is the difference between biomes and ecozones?

What helps to put the nature of ecosystems in context?

Which of the following plants CANNOT participate in nitrogen fixation?

Match each description with the appropriate scientific term. -energy transfer from producers to consumers

Compare the length of day with the intensity of sunlight near the equator. How do they differ?

Light and Life

The Cell: an Overview

Defining Life and Its Origins

Energy and Enzymes

Cell Membranes and Signalling

Cellular Respiration

Photosynthesis

Cell Cycles

Genetic Recombination

Mendel, Genes, and Inheritance

Genes, Chromosomes, and Human Genetics

Dna Structure, Replication, and Organization

Gene Structure and Expression

Control of Gene Expression

Dna Technologies

Genomes and Proteomes

Evolution: the Development of the Theory

Microevolution: Changes Within Populations

Species and Macroevolution

Understanding the History of Life on Earth

Humans and Evolution

Bacteria and Archaea

Viruses, Viroids, and Prions: Infectious Biological Particles

Protists

Fungi

Plants

Diversity of Animals 1: Sponges, Radiata, Platyhelminthes, and Protostomes

Diversity of Animals 2: Deuterostomes: Vertebrates and Their Closest Relatives

Population Ecology

Population Interactions and Community Ecology

Conservation of Biodiversity

Putting Selection to Work

Organization of the Plant Body

Transport in Plants

Reproduction and Development in Flowering Plants

Plant Nutrition

Plant Signals and Responses to the Environment

Introduction to Animal Organization and Physiology

Transport in Animals: the Circulatory System

Reproduction in Animals

Animal Development

Control of Animal Processes: Neural Control

Control of Animal Processes: Neural Control

Control of Animal Processes: Neural Integration

Muscles, Skeletons, and Body Movements

Animal Behaviour

Animal Nutrition

Gas Exchange: the Respiratory System

Regulating the Internal Environment

Defences Against Disease

Conservation and Evolutionary Physiology

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