Chapter 24:
Ecosystem Structure and Function
Practice Test
1.
What are the nutritional relationships among species of an ecosystem?
a.
trophic structure
b.
habitats
c.
nutrient cycles
d.
abiotic factors
Hint
2.
What is the particular combination of resources that a species is adapted to exploit?
a.
biomass
b.
niche
c.
habitat
d.
trophic level
Hint
3.
In an energy pyramid, what organisms would be found at the base of the pyramid?
a.
tertiary consumers
b.
producers
c.
secondary consumers
d.
primary consumers
Hint
4.
What is a nutritional relationship between species in which one species consumes another species?
a.
parasitism
b.
mutualism
c.
predation
d.
commensalism
Hint
5.
What is the total quantity of living matter in an ecosystem?
a.
niche
b.
habitat
c.
energy
d.
biomass
Hint
6.
What does the area of each level of an energy pyramid represent?
a.
the quantity of energy it receives from the trophic level below
b.
the quantity of energy it transmits to the trophic level above
c.
the total biomass available at the level above
d.
the total biomass available at the level below
Hint
7.
What is the number of individuals in a population per unit of land area or water volume?
a.
trophic level
b.
population density
c.
boom-and-bust cycle
d.
carrying capacity
Hint
8.
Which of these is a part of the nitrogen cycle?
a.
precipitation
b.
weathering of rocks
c.
volcanic activity
d.
transpiration
Hint
9.
Which of these is a type of secondary consumer in an ecosystem?
a.
herbivore
b.
decomposer
c.
autotroph
d.
carnivore
Hint
10.
Which of these is NOT an example of an abiotic factor?
a.
amount of light available for photosynthesis
b.
mineral composition of soil
c.
competition among individuals in a population
d.
availability of water
Hint
