Question 1

A type of symbiosis in which one member of the relationship benefits with no effect on the other is

Accepted Answer

A)  predation.
B)  mutualism.
C)  commensalism.
D)  parasitism.
E)  intraspecific competition.F) A) and D)
G) C) and E)

Question 2

Mistletoe is a plant that grows in the branches of other trees.Mistletoe roots harm the host tree by penetrating the bark of the tree to steal water and nutrients.This is an example of

Accepted Answer

A)  mutualism.
B)  commensalism.
C)  predation.
D)  parasitism.
E)  herbivory.F) C) and D)
G) B) and D)

Question 3

The different seasons of the year are caused by

Accepted Answer

A)  the tilt of the Earth's axis as the Earth travels around the Sun.
B)  the rotation of the Earth around the Sun.
C)  the rotation of the Earth on its axis.
D)  the rotation of the moon around the Earth.
E)  the gravitational pull of the moon as it travels around the Earth.F) A) and B)
G) A) and C)

Question 4

The taiga

Accepted Answer

A)  consists of mostly coniferous trees.
B)  has nutrient-rich soil.
C)  has a long growing season.
D)  is warm and dry.
E)  consists of mosses and lichens.F) C) and E)
G) A) and B)

Question 5

What types of plants would you expect to find in an alpine tundra?

Accepted Answer

A)  tall trees
B)  aquatic plants
C)  lichens and mosses
D)  tall grasses
E)  cactusF) A) and C)
G) A) and B)

Question 6

Streams lead to rivers that carry water and sediment toward the ocean or an interior basin.

Accepted Answer

A) True 
 B)False

Question 7

The type of succession that occurs in an area where no community previously existed is ______ succession.

Accepted Answer

A)  keystone
B)  tertiary
C)  secondary
D)  climax
E)  primaryF) A) and D)
G) D) and E)

Question 8

Scientists observed that over the past 40 years,marmots are located at increasing elevations on mountains.What is the best explanation for this observation?

Accepted Answer

A)  The marmots are adapting to the cold temperatures.
B)  Other species are competing with the marmots for their normal habitat.
C)  More snow and rain is falling at the top of the mountains.
D)  It is becoming colder at the top of the mountains.
E)  It is becoming warmer at the top of the mountains.F) B) and E)
G) A) and B)

Question 9

Species within a community are interconnected;species are NOT interconnected within an ecosystem.

Accepted Answer

A) True 
 B)False

Question 10

Examples of terrestrial biomes are grasslands,forests,lakes,and deserts.

Accepted Answer

A) True 
 B)False

Question 11

Walleye pike fish are which of the following?

Accepted Answer

A)  secondary consumers
B)  tertiary consumers
C)  primary consumers
D)  producers
E)  decomposersF) A) and D)
G) A) and E)

Question 12

If there are 10,000 calories of net primary productivity in an ecosystem,how much energy will be generally available to a secondary consumer?

Accepted Answer

A)  1,000 calories
B)  100 calories
C)  10,000 calories
D)  10 calories
E)  1 calorieF) C) and D)
G) B) and C)

Question 13

Why are top-level predators like lions and eagles so rare in a community?

Accepted Answer

A)  Only a small amount of the energy is passed from one trophic level to the next.
B)  They do not breed as fast as other animals.
C)  Predation by higher predators reduces their numbers.
D)  It is difficult for them to learn how to capture prey.
E)  Their job is to keep the population size of other animals in check.F) A) and D)
G) C) and E)

Question 14

Which of the following is NOT a major terrestrial biome of Earth?

Accepted Answer

A)  the temperate grasslands
B)  the tundra
C)  the taiga
D)  the Antarctic
E)  the tropical rain forestF) A) and E)
G) D) and E)

Question 15

Decomposers

Accepted Answer

A)  obtain nutrients from detritus.
B)  return organic molecules to their inorganic form.
C)  include bacteria.
D)  include fungi.
E)  All answers are correct.F) A) and B)
G) A) and C)

Question 16

In the section "Investigating Life: Two Kingdoms and a Virus Team Up to Beat the Heat",what did the scientists conclude from the figure?

Accepted Answer

A)  Plants survived the heat best with virus-infected fungi.
B)  Plants survived the heat best with virus-free fungi.
C)  Plants survived the heat best without fungi.
D)  Plants survived the heat best when infected by the virus.
E)  Plants survived the heat best when not infected by the virus.F) None of the above
G) B) and C)

Question 17

Which of the following biomes would you predict to be dependent on fire to prevent succession by trees?

Accepted Answer

A)  desert
B)  chaparral
C)  grassland
D)  deciduous forest
E)  taigaF) A) and E)
G) A) and B)

Question 18

Which of the following are abiotic interactions in an ecosystem?

Accepted Answer

A)  competition and competitive exclusion
B)  mutualism and parasitism
C)  herbivory and predation
D)  None of the answers are abiotic interactions.
E)  All answers of the answers are abiotic interactions.F) A) and B)
G) A) and C)

Question 19

The reliance of a plant on one type of insect for pollination and that insect having only the nectar of that plant as its food source is an example of coevolution.

Accepted Answer

A) True 
 B)False

Question 20

Which of the following is NOT a component of a tropical marine community?

Accepted Answer

A)  All of the answers are components of a tropical marine community.
B)  sunlight
C)  algae
D)  corals
E)  fishesF) None of the above
G) A) and C)

Exam 19: Communities and Ecosystems

If there are 10,000 calories of net primary productivity in an ecosystem,how much energy will be generally available to a secondary consumer?

Correct AnswerverifiedShow Answer

Walleye pike fish are which of the following?

Correct AnswerverifiedShow Answer

Species within a community are interconnected;species are NOT interconnected within an ecosystem.

Correct AnswerverifiedShow Answer

Which of the following are abiotic interactions in an ecosystem?

Correct AnswerverifiedShow Answer

Mistletoe is a plant that grows in the branches of other trees.Mistletoe roots harm the host tree by penetrating the bark of the tree to steal water and nutrients.This is an example of

Correct AnswerverifiedShow Answer

Which of the following is NOT a major terrestrial biome of Earth?

Correct AnswerverifiedShow Answer

What types of plants would you expect to find in an alpine tundra?

Correct AnswerverifiedShow Answer

Decomposers

Correct AnswerverifiedShow Answer

The reliance of a plant on one type of insect for pollination and that insect having only the nectar of that plant as its food source is an example of coevolution.

Correct AnswerverifiedShow Answer

The type of succession that occurs in an area where no community previously existed is ______ succession.

Correct AnswerverifiedShow Answer

Why are top-level predators like lions and eagles so rare in a community?

Correct AnswerverifiedShow Answer

A type of symbiosis in which one member of the relationship benefits with no effect on the other is

Correct AnswerverifiedShow Answer

The taiga

Correct AnswerverifiedShow Answer

In the section "Investigating Life: Two Kingdoms and a Virus Team Up to Beat the Heat",what did the scientists conclude from the figure?

Correct AnswerverifiedShow Answer

Scientists observed that over the past 40 years,marmots are located at increasing elevations on mountains.What is the best explanation for this observation?

Correct AnswerverifiedShow Answer

Which of the following biomes would you predict to be dependent on fire to prevent succession by trees?

Correct AnswerverifiedShow Answer

Streams lead to rivers that carry water and sediment toward the ocean or an interior basin.

Correct AnswerverifiedShow Answer

Which of the following is NOT a component of a tropical marine community?

Correct AnswerverifiedShow Answer

Examples of terrestrial biomes are grasslands,forests,lakes,and deserts.

Correct AnswerverifiedShow Answer

The different seasons of the year are caused by

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified