Question 1

A relationship between two species in which both species benefit is known as

Accepted Answer

A)  parasitism. 
B)  mutualism 
C)  competition. 
D)  predation. 
E)  commensalism. 
A)  parasitism. 
B)  mutualism 
C)  competition. 
D)  predation. 
E)  commensalism.

Question 2

Considering the traditional view of ecological succession,which of the following plants would most likely be a pioneer species in a primary succession event?

Accepted Answer

A)  an oak tree that produces acorns dispersed by squirrels 
B)  a snapdragon flower pollinated by bees 
C)  a dandelion which produces seeds asexually and disperses seeds by the wind 
D)  it could be any of these 
E)  it couldn't be any of these 
A)  an oak tree that produces acorns dispersed by squirrels 
B)  a snapdragon flower pollinated by bees 
C)  a dandelion which produces seeds asexually and disperses seeds by the wind 
D)  it could be any of these 
E)  it couldn't be any of these

Question 3

The first plant to colonize the plains of Mt St Helens after this volcano erupted in 1980 was a prairie lupine.The prairie lupine is an example of

Accepted Answer

A)  a secondary successor. 
B)  a pioneer species. 
C)  a keystone species. 
D)  an exotic species. 
E)  more than one of these. 
A)  a secondary successor. 
B)  a pioneer species. 
C)  a keystone species. 
D)  an exotic species. 
E)  more than one of these.

Question 4

Which of the following components are part of an ecosystem?

Accepted Answer

A)  plants 
B)  animals 
C)  rocks and soils 
D)  plants and animals 
E)  plants, animals, rocks, and soil 
A)  plants 
B)  animals 
C)  rocks and soils 
D)  plants and animals 
E)  plants, animals, rocks, and soil

Question 5

In a hypothetical land ecosystem,plants- the primary producers- capture 1000 kilocalories of sunlight energy per square meter per year.Approximately,how many kilocalories of the plant's energy will be harvested by the third trophic level?

Accepted Answer

A)  1 
B)  10 
C)  100 
D)  1000 
E)  impossible to calculate 
A)  1 
B)  10 
C)  100 
D)  1000 
E)  impossible to calculate

Question 6

An aquifer is most closely related to

Accepted Answer

A)  sea water. 
B)  lake water. 
C)  stream water. 
D)  glacial water. 
E)  groundwater. 
A)  sea water. 
B)  lake water. 
C)  stream water. 
D)  glacial water. 
E)  groundwater.

Question 7

The Venus flytrap receives its nitrogen by trapping and digesting insects.This is a type of

Accepted Answer

A)  commensalism. 
B)  mutualism. 
C)  competition. 
D)  predation. 
E)  parasitism. 
A)  commensalism. 
B)  mutualism. 
C)  competition. 
D)  predation. 
E)  parasitism.

Question 8

The plants and animals now present on acreage from which the trees were removed ten years earlier represent

Accepted Answer

A)  primary succession. 
B)  a climax forest. 
C)  pioneer species. 
D)  secondary succession. 
E)  species introduction. 
A)  primary succession. 
B)  a climax forest. 
C)  pioneer species. 
D)  secondary succession. 
E)  species introduction.

Question 9

The relationship between the yucca plant and the yucca moth that pollinates it is best described as

Accepted Answer

A)  commensalism. 
B)  parasitism. 
C)  predation. 
D)  mutualism. 
E)  all of these. 
A)  commensalism. 
B)  parasitism. 
C)  predation. 
D)  mutualism. 
E)  all of these.

Question 10

Four of the five answers listed below are relationships in which at least one of the interactants benefits.Select the EXCEPTION.

Accepted Answer

A)  competition 
B)  parasitism 
C)  mutualism 
D)  commensalism 
E)  predation 
A)  competition 
B)  parasitism 
C)  mutualism 
D)  commensalism 
E)  predation

Question 11

Classification.Answer the questions in reference to the five kinds of species interactions listed below.
a.competition
b.predation
c.mutualism
d.commensalism
-Lichens and mosses live on the branches of trees and are benefited by being up and out of the shade where they can do more photosynthesis.The tree is unharmed by their presence.

Accepted Answer

The answer of Classification.Answer the questions in reference to the...

Question 12

The niche of a lichen in an ecosystem is
a.
a producer.
b.
a consumer.
c.
a detritivore.
d.
a decomposer.
e.
more than one of these.

Accepted Answer

E
Because lichens are both fun

Question 13

What is the ultimate fate of the heat energy released when chemical bonds are broken?

Accepted Answer

A)  it is used to do metabolic work 
B)  it diffuses out of the ecosystem 
C)  it is recycled and reused 
D)  it is captured by other organisms further down in the food chain 
E)  it is used to heat animal bodies 
A)  it is used to do metabolic work 
B)  it diffuses out of the ecosystem 
C)  it is recycled and reused 
D)  it is captured by other organisms further down in the food chain 
E)  it is used to heat animal bodies

Question 14

The niche of an earthworm in an ecosystem is

Accepted Answer

A)  a producer. 
B)  a consumer. 
C)  a detritivore. 
D)  a decomposer. 
E)  more than one of these. 
A)  a producer. 
B)  a consumer. 
C)  a detritivore. 
D)  a decomposer. 
E)  more than one of these.

Question 15

The nitrogen cycle on land begins with

Accepted Answer

A)  nitrification. 
B)  denitrification. 
C)  decomposition. 
D)  uptake by producers. 
E)  nitrogen fixation. 
A)  nitrification. 
B)  denitrification. 
C)  decomposition. 
D)  uptake by producers. 
E)  nitrogen fixation.

Question 16

Which of the following is an adaptation against predation?

Accepted Answer

A)  thorns 
B)  camouflage 
C)  mimicry 
D)  tough, chewy leaves 
E)  all of these 
A)  thorns 
B)  camouflage 
C)  mimicry 
D)  tough, chewy leaves 
E)  all of these

Question 17

A hummingbird that pollinates morning glory flowers and nests in the crotch of an apple tree.The apple tree is not harmed or helped by the hummingbird.The relationship between the hummingbird and the apple tree is a

Accepted Answer

A)  mutualism. 
B)  commensalism. 
C)  competition. 
D)  parasitism. 
E)  predation. 
A)  mutualism. 
B)  commensalism. 
C)  competition. 
D)  parasitism. 
E)  predation.

Question 18

The mycorrhizal relationship you studied in a previous chapter is an example of

Accepted Answer

A)  commensalism. 
B)  mutualism. 
C)  competition. 
D)  predation. 
E)  parasitism. 
A)  commensalism. 
B)  mutualism. 
C)  competition. 
D)  predation. 
E)  parasitism.

Question 19

Classification.Answer the questions in reference to the five trophic categories of an ecosystem listed below.
a.producer
b.herbivore
c.carnivore
d.detritivore
e.decomposer
-an earthworm

Accepted Answer

The answer of Classification.Answer the questions in reference to the...

Question 20

What term denotes the range of all factors that influence whether a species can obtain resources essential for survival and reproduction?

Accepted Answer

A)  habitat 
B)  niche 
C)  carrying capacity 
D)  community 
E)  ecosystem 
A)  habitat 
B)  niche 
C)  carrying capacity 
D)  community 
E)  ecosystem

Exam 17: Communities and Ecosystems

A relationship between two species in which both species benefit is known as

Considering the traditional view of ecological succession,which of the following plants would most likely be a pioneer species in a primary succession event?

The first plant to colonize the plains of Mt St Helens after this volcano erupted in 1980 was a prairie lupine.The prairie lupine is an example of

Which of the following components are part of an ecosystem?

In a hypothetical land ecosystem,plants- the primary producers- capture 1000 kilocalories of sunlight energy per square meter per year.Approximately,how many kilocalories of the plant's energy will be harvested by the third trophic level?

An aquifer is most closely related to

The Venus flytrap receives its nitrogen by trapping and digesting insects.This is a type of

The plants and animals now present on acreage from which the trees were removed ten years earlier represent

The relationship between the yucca plant and the yucca moth that pollinates it is best described as

Four of the five answers listed below are relationships in which at least one of the interactants benefits.Select the EXCEPTION.

The niche of a lichen in an ecosystem is a. a producer. b. a consumer. c. a detritivore. d. a decomposer. e. more than one of these.

What is the ultimate fate of the heat energy released when chemical bonds are broken?

The niche of an earthworm in an ecosystem is

The nitrogen cycle on land begins with

Which of the following is an adaptation against predation?

A hummingbird that pollinates morning glory flowers and nests in the crotch of an apple tree.The apple tree is not harmed or helped by the hummingbird.The relationship between the hummingbird and the apple tree is a

The mycorrhizal relationship you studied in a previous chapter is an example of

Classification.Answer the questions in reference to the five trophic categories of an ecosystem listed below. a.producer b.herbivore c.carnivore d.detritivore e.decomposer -an earthworm

What term denotes the range of all factors that influence whether a species can obtain resources essential for survival and reproduction?

Invitation to Biology

Molecules of Life

Cell Structure

Energy and Metabolism

Capturing and Releasing Energy

DNA Structure and Function

Gene Expression and Control

How Cells Reproduce

Patterns of Inheritance

Biotechnology

Evidence of Evolution

Processes of Evolution

Early Life Forms and the Viruses

Plants and Fungi

Animal Evolution

Population Ecology

The Biosphere and Human Effects

Animal Tissues and Organs

How Animals Move

Circulation and Respiration

Immunity

Digestion and Excretion

Neural Control and the Senses

Endocrine Control

Reproduction and Development

Plant Form and Function

Plant Reproduction and Development

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