Question 1

Which of the following would be considered an example of competition?

Accepted Answer

A)  Some species of crabs decorate their shells with sea anemones and other corals. These "decorations" help camouflage the crab and the movement of the crab from one area to the next exposes the corals and anemones to different sources of food. 
B)  Some spiders do not build webs, but live in the web of another species. When a prey item is caught in the web, the non-web building spider will sneak in and steal the prey. 
C)  A praying mantis hunting and eating a fly is an example. 
D)  The longest tapeworm removed from a human was approximately 11 meters long. Tapeworms do not have a digestive system, but obtains all of their nutrients from the host. 
E)  Pseudoscorpions are small, harmless arachnids. To move from one place to another, they will sometimes latch onto the legs of flies and thus be carried long distances that they would not readily be able to traverse. 
A)  Some species of crabs decorate their shells with sea anemones and other corals. These "decorations" help camouflage the crab and the movement of the crab from one area to the next exposes the corals and anemones to different sources of food. 
B)  Some spiders do not build webs, but live in the web of another species. When a prey item is caught in the web, the non-web building spider will sneak in and steal the prey. 
C)  A praying mantis hunting and eating a fly is an example. 
D)  The longest tapeworm removed from a human was approximately 11 meters long. Tapeworms do not have a digestive system, but obtains all of their nutrients from the host. 
E)  Pseudoscorpions are small, harmless arachnids. To move from one place to another, they will sometimes latch onto the legs of flies and thus be carried long distances that they would not readily be able to traverse.

Question 2

In an aquatic ecosystem, the aquatic plants are eaten by small invertebrates that in turn are eaten by crayfish, the crayfish are eaten by fish, and the fish are eaten by ducks. In this system, the greatest amount of biomass would be found in the _____________.

Accepted Answer

A)  aquatic plants 
B)  small invertebrates 
C)  crayfish 
D)  fish 
E)  ducks 
A)  aquatic plants 
B)  small invertebrates 
C)  crayfish 
D)  fish 
E)  ducks

Question 3

Which two terrestrial biomes are the most similar with regards to rainfall?

Accepted Answer

A)  desert & taiga 
B)  tundra & desert 
C)  desert & temperate forest 
D)  temperate grasslands & desert 
E)  temperate forests & rainforests 
A)  desert & taiga 
B)  tundra & desert 
C)  desert & temperate forest 
D)  temperate grasslands & desert 
E)  temperate forests & rainforests

Question 4

Which of the following is an example of a sedimentary cycle?

Accepted Answer

A)  the phosphorus cycle 
B)  the nitrogen cycle 
C)  the carbon cycle 
D)  the atmospheric cycle 
E)  eutrophic cycle 
A)  the phosphorus cycle 
B)  the nitrogen cycle 
C)  the carbon cycle 
D)  the atmospheric cycle 
E)  eutrophic cycle

Question 5

A community is

Accepted Answer

A)  populations of multiple species interacting with one another in a specific area. 
B)  populations of organisms and the abiotic factors in their environment. 
C)  competition for food between individuals in a population. 
D)  all the biotic and abiotic factors in an environment. 
E)  multiple organisms of the same species living in a specific area. 
A)  populations of multiple species interacting with one another in a specific area. 
B)  populations of organisms and the abiotic factors in their environment. 
C)  competition for food between individuals in a population. 
D)  all the biotic and abiotic factors in an environment. 
E)  multiple organisms of the same species living in a specific area.

Question 6

The physical space that an organism occupies in its environment is its ______________.

Accepted Answer

A)  habitat 
B)  niche 
C)  biotic factor 
D)  role 
E)  abiotic factor 
A)  habitat 
B)  niche 
C)  biotic factor 
D)  role 
E)  abiotic factor

Question 7

Figure:  
-Based on the figure shown here, which of the following is a secondary consumer?

Accepted Answer

A)  skunk 
B)  owl 
C)  rabbit 
D)  insects 
E)  deer 
A)  skunk 
B)  owl 
C)  rabbit 
D)  insects 
E)  deer

Question 8

A decomposer ultimately obtains all its food from

Accepted Answer

A)  sunlight. 
B)  mushrooms. 
C)  preying on other living organism. 
D)  parasitizing living organisms. 
E)  dead and decaying plant matter. 
A)  sunlight. 
B)  mushrooms. 
C)  preying on other living organism. 
D)  parasitizing living organisms. 
E)  dead and decaying plant matter.

Question 9

All of the following are reservoirs EXCEPT ________.

Accepted Answer

A)  oil 
B)  calcium carbonate 
C)  coal 
D)  natural gas 
E)  bicarbonate 
A)  oil 
B)  calcium carbonate 
C)  coal 
D)  natural gas 
E)  bicarbonate

Question 10

Figure:  
-Based on the figure shown here, which of the following is both a primary and secondary consumer?

Accepted Answer

A)  skunk 
B)  mice 
C)  rabbit 
D)  deer 
E)  snake 
A)  skunk 
B)  mice 
C)  rabbit 
D)  deer 
E)  snake

Question 11

Which of the following is an example of primary succession?

Accepted Answer

A)  new growth in a forest after a forest fire 
B)  regrowth and recolonization on Mt. St. Helens in areas covered with rock and lava 
C)  a wheat field that is not is allowed to grow wild 
D)  regrowth of vegetation in an area covered by a mud slide after flooding 
E)  colonization of an isolated island by a population of long-horned beetles 
A)  new growth in a forest after a forest fire 
B)  regrowth and recolonization on Mt. St. Helens in areas covered with rock and lava 
C)  a wheat field that is not is allowed to grow wild 
D)  regrowth of vegetation in an area covered by a mud slide after flooding 
E)  colonization of an isolated island by a population of long-horned beetles

Question 12

Which of the following is an example of species richness?

Accepted Answer

A)  vultures feeding on the remains of a carcass 
B)  herd of 60 elk, 6 bald eagles and 90 white pine trees 
C)  prairie chickens at a lake competing for access to mates 
D)  diving beetles, blue gill, lilies, water mites, crayfish 
E)  100 kg of vegetation, 10 kg of grasshoppers, 1 kg of spiders 
A)  vultures feeding on the remains of a carcass 
B)  herd of 60 elk, 6 bald eagles and 90 white pine trees 
C)  prairie chickens at a lake competing for access to mates 
D)  diving beetles, blue gill, lilies, water mites, crayfish 
E)  100 kg of vegetation, 10 kg of grasshoppers, 1 kg of spiders

Question 13

Which of the following is NOT true about species diversity?

Accepted Answer

A)  It includes species richness. 
B)  It includes species diversity. 
C)  It is influenced by the relative abundance of species. 
D)  It is influenced by the distribution of the different species. 
E)  It is not impacted by species richness. 
A)  It includes species richness. 
B)  It includes species diversity. 
C)  It is influenced by the relative abundance of species. 
D)  It is influenced by the distribution of the different species. 
E)  It is not impacted by species richness.

Question 14

The first pioneer species to appear in an area undergoing secondary succession is

Accepted Answer

A)  an equilibrium species. 
B)  long-lived. 
C)  able to produce numerous offspring. 
D)  a secondary consumer. 
E)  slow to reach sexual maturity. 
A)  an equilibrium species. 
B)  long-lived. 
C)  able to produce numerous offspring. 
D)  a secondary consumer. 
E)  slow to reach sexual maturity.

Exam 31: Communities and Ecosystems

Which of the following would be considered an example of competition?

In an aquatic ecosystem, the aquatic plants are eaten by small invertebrates that in turn are eaten by crayfish, the crayfish are eaten by fish, and the fish are eaten by ducks. In this system, the greatest amount of biomass would be found in the _____________.

Which two terrestrial biomes are the most similar with regards to rainfall?

Which of the following is an example of a sedimentary cycle?

A community is

The physical space that an organism occupies in its environment is its ______________.

Figure: -Based on the figure shown here, which of the following is a secondary consumer?

A decomposer ultimately obtains all its food from

All of the following are reservoirs EXCEPT ________.

Figure: -Based on the figure shown here, which of the following is both a primary and secondary consumer?

Which of the following is an example of primary succession?

Which of the following is an example of species richness?

Which of the following is NOT true about species diversity?

The first pioneer species to appear in an area undergoing secondary succession is

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