Question 1

A large percentage of energy passes on from one trophic level to the next.

Accepted Answer

A) True 
 B)False  False

Question 2

Match each description with the appropriate scientific term.
-ratio of net productivity at one trophic level to the productivity at the trophic level below it

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 B

Question 3

Suppose that you are studying the total dry mass of plants present at a given time. What exactly are you studying?

Accepted Answer

A)  number of plant species present 
B)  standing crop biomass 
C)  amount of sunlight absorbed by the plants 
D)  productivity of the plants 
A)  number of plant species present 
B)  standing crop biomass 
C)  amount of sunlight absorbed by the plants 
D)  productivity of the plants B

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

How many energy transfers away from the Sun are herbivores?

Accepted Answer

A)  4 
B)  3 
C)  2 
D)  1 
A)  4 
B)  3 
C)  2 
D)  1

Question 6

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 7

What is an alternative to nitrogen fixation for plants living in nitrogen-poor soils?

Accepted Answer

A)  oxidation 
B)  ammonification 
C)  carnivory 
D)  nitrification 
A)  oxidation 
B)  ammonification 
C)  carnivory 
D)  nitrification

Question 8

Match each description with the appropriate scientific term.
-describes how nutrients accumulate in four compartments

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

What was concluded from the energy flow study at Silver Springs in Florida?

Accepted Answer

A)  Trophic energy losses are not significant. 
B)  Energy flows are difficult to measure. 
C)  Only a little energy is transferred from one trophic level to the next. 
D)  Most of the Sun's energy is harvested. 
A)  Trophic energy losses are not significant. 
B)  Energy flows are difficult to measure. 
C)  Only a little energy is transferred from one trophic level to the next. 
D)  Most of the Sun's energy is harvested.

Question 10

What is the primary energetic input in caves?

Accepted Answer

A)  bats' droppings 
B)  bats' saliva 
C)  bats' dead bodies 
D)  bats' babies 
A)  bats' droppings 
B)  bats' saliva 
C)  bats' dead bodies 
D)  bats' babies

Question 11

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 12

What is the shape of the trophic pyramids, typically?

Accepted Answer

A)  narrow at the base and wide at the top 
B)  narrow at the base and narrow at the top 
C)  wide at the base and wide at the top 
D)  wide at the base and narrow at the top 
A)  narrow at the base and wide at the top 
B)  narrow at the base and narrow at the top 
C)  wide at the base and wide at the top 
D)  wide at the base and narrow at the top

Question 13

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 14

Fossil fuels are the result of buried organisms where low oxygen levels existed.

Accepted Answer

A) True 
 B)False

Question 15

Match the term that corresponds to the appropriate lettered box in the image.  
-primary producers

Accepted Answer

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

Question 16

How do food webs relate to the idea of biological magnification of toxins?

Accepted Answer

When toxins are present in the soil, wat

Question 17

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

Accepted Answer

You would subtract the energy

Question 18

Match each description with the appropriate scientific term.
-reduction of productivity at higher trophic levels

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 19

What are you studying when you consider connections among the diversity of species?

Accepted Answer

A)  ecosystems 
B)  life 
C)  environment 
D)  species 
A)  ecosystems 
B)  life 
C)  environment 
D)  species

Question 20

How does crop rotation aid the farmer?

Accepted Answer

If a farmer plants a different type of c

Exam 31: Ecosystems

A large percentage of energy passes on from one trophic level to the next.

Match each description with the appropriate scientific term. -ratio of net productivity at one trophic level to the productivity at the trophic level below it

Suppose that you are studying the total dry mass of plants present at a given time. What exactly are you studying?

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

How many energy transfers away from the Sun are herbivores?

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

What is an alternative to nitrogen fixation for plants living in nitrogen-poor soils?

Match each description with the appropriate scientific term. -describes how nutrients accumulate in four compartments

What was concluded from the energy flow study at Silver Springs in Florida?

What is the primary energetic input in caves?

What is the main natural source of phosphorus?

What is the shape of the trophic pyramids, typically?

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

Fossil fuels are the result of buried organisms where low oxygen levels existed.

Match the term that corresponds to the appropriate lettered box in the image. -primary producers

How do food webs relate to the idea of biological magnification of toxins?

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

Match each description with the appropriate scientific term. -reduction of productivity at higher trophic levels

What are you studying when you consider connections among the diversity of species?

How does crop rotation aid the farmer?

Light and Life

The Cell: an Overview

Energy and Enzymes

Cell Membranes and Signaling

Cellular Respiration

Photosynthesis

Cell Cycles

Genetic Recombination

The Chromosomal Basis of Mendelian Inheritance

Genetic Linkage, Sex-Linkage, and Other Non-Mendelian Inheritance Mechanisms

DNA Structure, Replication, and Repair

Gene Structure Expression, and Mutation

Regulation of Gene Expression

Dna Technologies

Genomes

Evolution: the Development of the Theory

Microevolution: Changes Within Populations

Speciation and Macroevolution

Systematics and Phylogenetics: Revealing the Tree of Life

Humans and Evolution

Defining Life and Its Origins

Viruses, Viroids, and Prions: Infectious Biological Particles

Bacteria and Archaea

Protists

Fungi

Plants

Animals

Conservation of Biodiversity

Population Ecology

Species Interactions and Community Ecology

Animal Behaviour

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

Animal Nutrition

Gas Exchange: the Respiratory System

Internal Transport: the Circulatory System

Regulation of the Internal Environment: Water, Solutes, and Temperature

Control of Animal Processes: Endocrine Control

Animal Reproduction

Control of Animal Processes: Neural Control

Muscles, Skeletons, and Body Movements

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