Question 1

The concentration of the pesticide DDT would be lowest in which of the following?

Accepted Answer

A)  A seagull
B)  A minnow
C)  A mosquito larvae
D)  Algae
E)  PlanktonF) B) and E)
G) A) and B)

Question 2

The adaptations in Pseudomyrmex species and acacias suggest that the two species ______________.

Accepted Answer

A)  Have coevolved
B)  Have intermingled
C)  Have evolved separately
D)  Occupy the same niche
E)  Occupy the same tidal zoneF) B) and D)
G) All of the above

Question 3

An insect that resembles leaves is using ___ to avoid predation.

Accepted Answer

A)  Camouflage
B)  Warning coloration
C)  Mimicry
D)  Chemical defense
E)  MutualismF) A) and B)
G) B) and C)

Question 4

Lichens and mosses that can grow on and erode rock would be considered pioneer species.

Accepted Answer

A) True 
 B)False

Question 5

The _____________________ cycle begins with the weathering of rock.

Accepted Answer

A)  Phosphorous cycle
B)  Nitrogen cycle
C)  Water cycle
D)  Energy cycle
E)  Carbon cycleF) A) and D)
G) A) and C)

Question 6

Mistletoe is a plant that grows in the branches of other trees.Its roots penetrate the bark of the tree obtaining water and nutrients from the tree.This is an example of:

Accepted Answer

A)  Mutualism
B)  Commensalism
C)  Predation
D)  Parasitism
E)  HerbivoryF) C) and D)
G) B) and E)

Question 7

A ________________________ makes up a small portion of the community by weight,yet exerts a disproportionate influence on community diversity.

Accepted Answer

A)  Keystone species
B)  Cornerstone species
C)  Capstone species
D)  Flagstone species
E)  None of the above are correctF) A) and B)
G) B) and D)

Question 8

A type of symbiosis in which one member of the relationship benefits and the other is harmed is:

Accepted Answer

A)  Predation
B)  Mutualism
C)  Commensalism
D)  Parasitism
E)  Intraspecific competitionF) A) and B)
G) A) and C)

Question 9

Parasitism is a symbiotic relationship in which neither member of the relationship benefits.

Accepted Answer

A) True 
 B)False

Question 10

When two or more species vie for the same limited resource _____________________ occurs.

Accepted Answer

A)  Succession
B)  Symbiosis
C)  Coevolution
D)  Stotting
E)  CompetitionF) B) and D)
G) A) and B)

Question 11

Which of the following is not a type of symbiosis?

Accepted Answer

A)  Parasitism
B)  Mutualism
C)  Commensalism
D)  Predation
E)  None of the above are correctF) All of the above
G) D) and E)

Question 12

The energy requiring process by which liquid water becomes water vapor (a gas) is:

Accepted Answer

A)  Sublimation
B)  Condensation
C)  Convection
D)  Evaporation
E)  All are correctF) A) and E)
G) A) and D)

Question 13

The term abiotic means "nonliving".

Accepted Answer

A) True 
 B)False

Question 14

figure 37.20 
-What did the scientists conclude from figure 37.20?

Accepted Answer

A)  Adding the virus back to virus-free fungi decreased plant survival
B)  Infecting plants with the virus increased their survival
C)  Infecting plants with the virus decreased their survival
D)  Infecting the fungus with the virus allowed them to grow in the heat
E)  Adding the virus back to virus-free fungi increased plant survivalF) A) and B)
G) A) and C)

Question 15

Abiotic components of an ecosystem include:

Accepted Answer

A)  Living components only
B)  Both nonliving and living components
C)  Only plant life
D)  Nonliving components only
E)  Only animal lifeF) A) and D)
G) None of the above

Question 16

Why are keystone predators like lions and eagle so rare in a community?

Accepted Answer

A)  Because only a small amount of the energy is passed from one trophic level to the next
B)  Because they do not breed as fast as other animals
C)  Because of predation by higher predators
D)  Because it is difficult for them to learn how to capture prey
E)  Because their job is to keep the population size of other animals in checkF) A) and C)
G) C) and E)

Question 17

The concentration of the pesticide DDT would be highest in which of the following?

Accepted Answer

A)  A minnow
B)  A mosquito larvae
C)  A seagull
D)  Plankton
E)  AlgaeF) A) and D)
G) D) and E)

Question 18

figure 37.19 
-What is the dependent variable in figure 37.19?

Accepted Answer

A)  Number of plants that could grow at 37°C
B)  Number of plants that could grow at 65°C
C)  Number of plants that died at 65°C
D)  Number of plants that died at 37°CE) A) and B)
F) A) and C)

Question 19

Which of the following is not an important biogeochemical cycle on Earth?

Accepted Answer

A)  ATP cycle
B)  Water cycle
C)  Carbon cycle
D)  Phosphorous cycle
E)  Nitrogen cycleF) B) and E)
G) D) and E)

Question 20

A network of interconnected food chains is a food web.

Accepted Answer

A) True 
 B)False

Exam 37: Communities and Ecosystems

The _____________________ cycle begins with the weathering of rock.

Correct AnswerverifiedShow Answer

A ________________________ makes up a small portion of the community by weight,yet exerts a disproportionate influence on community diversity.

Correct AnswerverifiedShow Answer

An insect that resembles leaves is using ___ to avoid predation.

Correct AnswerverifiedShow Answer

figure 37.20 -What did the scientists conclude from figure 37.20?

Correct AnswerverifiedShow Answer

figure 37.19 -What is the dependent variable in figure 37.19?

Correct AnswerverifiedShow Answer

A type of symbiosis in which one member of the relationship benefits and the other is harmed is:

Correct AnswerverifiedShow Answer

When two or more species vie for the same limited resource _____________________ occurs.

Correct AnswerverifiedShow Answer

Lichens and mosses that can grow on and erode rock would be considered pioneer species.

Correct AnswerverifiedShow Answer

Abiotic components of an ecosystem include:

Correct AnswerverifiedShow Answer

A network of interconnected food chains is a food web.

Correct AnswerverifiedShow Answer

The adaptations in Pseudomyrmex species and acacias suggest that the two species ______________.

Correct AnswerverifiedShow Answer

The concentration of the pesticide DDT would be lowest in which of the following?

Correct AnswerverifiedShow Answer

The concentration of the pesticide DDT would be highest in which of the following?

Correct AnswerverifiedShow Answer

Mistletoe is a plant that grows in the branches of other trees.Its roots penetrate the bark of the tree obtaining water and nutrients from the tree.This is an example of:

Correct AnswerverifiedShow Answer

Why are keystone predators like lions and eagle so rare in a community?

Correct AnswerverifiedShow Answer

The term abiotic means "nonliving".

Correct AnswerverifiedShow Answer

The energy requiring process by which liquid water becomes water vapor (a gas) is:

Correct AnswerverifiedShow Answer

Which of the following is not an important biogeochemical cycle on Earth?

Correct AnswerverifiedShow Answer

Parasitism is a symbiotic relationship in which neither member of the relationship benefits.

Correct AnswerverifiedShow Answer

Which of the following is not a type of symbiosis?

Correct AnswerverifiedShow Answer

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