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Chapter Quiz
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1

True or false. Biodiversity is more or less the same over the planet.
A)True
B)False
2

All the resources a species could potentially use describe its ____________.
A)habitat
B)ecological niche
C)fundamental niche
D)realized niche
3

____________ is the physical place where a species lives.
A)Habitat
B)Ecological niche
C)Fundamental niche
D)Realized niche
4

Which of the following are mechanisms that help prey avoid being eaten by predators?
A)warning coloration
B)camouflage
C)mimicry
D)All of these are correct.
5

True or false. Resource partitioning allows several similar competing species to coexist in a habitat.
A)True
B)False
6

What type of organism produces acids that degrade rocks and minerals?
A)mosses
B)fungi
C)lichens
D)algae
7

True or false. Secondary succession requires the formation of new soil for the establishment of plant species.
A)True
B)False
8

Can primary and secondary succession occur simultaneously in a large area that has faced a major disturbance?
A)Yes
B)No
9

Carnivores that eat herbivores in a food chain are the _________________.
A)primary consumers
B)secondary consumers
C)tertiary consumers
D)scavengers
10

Interconnecting food chains form complex ______________.
A)food webs
B)dominance relationships
C)ecosystems
D)None of these is correct.
11

A species that has a disproportionate effect on community structure is called the ______________.
A)dominant species
B)decomposer
C)keystone species
D)primary predator
12

True or false. The total amount of solar energy converted to chemical energy in a given time period in a region is net primary production.
A)True
B)False
13

What is the difference between gross and net primary production?
A)the amount of energy lost through respiration
B)the amount of biomass
C)the amount of inorganic material remaining
D)the amount of energy lost back to space
14

A pyramid of numbers shows _____________.
A)the number of links in a food web
B)the number of organisms at each trophic level
C)the number of types of species in a community
D)All of these are correct.
15

True or false. In some aquatic ecosystems, the pyramid of biomass is inverted.
A)True
B)False
16

Carbon is initially incorporated into the food chain by ______________.
A)plants taking up CO2 from the atmosphere during photosynthesis
B)burning of fossil fuels
C)bacterial decomposition
D)All of these are correct.
17

What type of organisms convert nitrates and nitrites into nitrogen gas?
A)nitrogen-fixing
B)denitrifying
C)nitrifying
D)ammonifying
18

How is phosphorus returned to the soil from organic phosphorus?
A)leaching
B)decomposition
C)volatilization
D)as fertilizer
19

The term used to describe the successive increase in the amount of pesticide or other pollutant in the tissues of organisms in successive trophic levels is _____________.
A)bioaccumulation
B)biomagnification
C)concentration
D)All of these are correct.
20

The richest ecosystem(s) on earth may well be _____________.
A)vernal pools
B)fjords
C)the Niagara Escarpment
D)the sea surface





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