Name: 
 

EOC Review Biological Classification, Communities and Ecosystems



Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 1. 

Linnaeus’s two-word system for naming organisms is called
a.
taxonomic evolution.
c.
Greek polynomials.
b.
Genus species.
d.
binomial nomenclature.
 

 2. 

All scientific names must have
a.
two Latin words.
b.
the same species name.
c.
different genus names for organisms within the group.
d.
the same common name.
 

 3. 

The basic biological unit in the Linnaean system of classification is the
a.
kingdom.
c.
genus.
b.
family.
d.
species.
 

 4. 

An advantage of our scientific naming system is that
a.
common names mean the same in all countries.
b.
Latin names are easy to pronounce.
c.
biologists can communicate regardless of their native languages.
d.
organisms all have the same scientific name.
 

 5. 

Under the Linnaean system of classification, plants and animals are sorted into groups based on
a.
number and size.
c.
form and size.
b.
form and structure.
d.
number and structure.
 

 6. 

The largest division that a group of organisms can belong to is
a.
kingdom.
c.
genus.
b.
class.
d.
species.
 

 7. 

A group of organisms of different species living together in a particular place is called a
a.
community.
c.
biome.
b.
population.
d.
habitat.
 

 8. 

An ecosystem consists of
a.
a community of organisms.
c.
the soil, water, and weather.
b.
energy.
d.
All of the above
 

 9. 

A relationship between a producer and consumer is best illustrated by a
a.
snake eating a bird.
c.
lion eating a zebra.
b.
fox eating a mouse.
d.
zebra eating grass.
 

 10. 

Organisms that manufacture organic nutrients for an ecosystem are called
a.
primary consumers.
c.
primary producers.
b.
predators.
d.
scavengers.
 

 11. 

The primary producers in a grassland ecosystem would most likely be
a.
insects.
c.
grasses.
b.
bacteria.
d.
algae.
 
 
nar001-1.jpg
 

 12. 

Refer to the illustration above. The photosynthetic algae are
a.
producers.
c.
parasites.
b.
consumers.
d.
decomposers.
 

 13. 

Refer to the illustration above. The diagram, which shows how energy moves through an ecosystem, is known as a
a.
habitat.
c.
food net.
b.
food chain.
d.
food web.
 

 14. 

Refer to the illustration above. Leopard seals are
a.
producers.
c.
herbivores.
b.
omnivores.
d.
carnivores.
 

 15. 

Refer to the illustration above. Killer whales feed at the
a.
first and second trophic levels.
c.
second and third trophic levels.
b.
second trophic level only.
d.
third and fourth trophic levels.
 
 

nar002-1.jpg
 

 16. 

Refer to the illustration above. Level A is composed of
a.
carnivores.
c.
producers.
b.
herbivores.
d.
omnivores.
 

 17. 

Refer to the illustration above. The diagram shows a(n)
a.
food chain.
c.
food web.
b.
community.
d.
energy pyramid.
 

 18. 

Refer to the illustration above. On the pyramid, animals that feed on plant eaters are no lower than
a.
level A.
c.
level C.
b.
level B.
d.
level D.
 

 19. 

Refer to the illustration above. How much energy is available to the organisms in level C?
a.
all of the energy in level A plus the energy in level B
b.
all of the energy in level A minus the energy in level B
c.
10 percent of the energy in level B
d.
90 percent of the energy in level B
 

 20. 

Precipitation and evaporation are important components of the
a.
nitrogen cycle.
c.
carbon cycle.
b.
water cycle.
d.
All of the above
 

 21. 

The paths of water, carbon, nitrogen, and phosphorus pass from the non-living environment to living organisms and back to the non-living environment in closed circles called
a.
living cycles.
c.
biogeochemical cycles.
b.
environcycles.
d.
None of the above
 
 
The diagrams below show different kinds of interactions between species.

nar003-1.jpg
 

 22. 

Refer to the illustration above. The relationship shown in diagram 4 above is
a.
commensalism.
c.
mutualism.
b.
competition.
d.
parasitism.
 

 23. 

Refer to the illustration above. The relationship shown in diagram 1 above is
a.
commensalism.
c.
mutualism.
b.
competition.
d.
parasitism.
 

 24. 

Refer to the illustration above. The relationship shown in diagram 3 above is
a.
commensalism.
c.
mutualism.
b.
competition.
d.
parasitism.
 

 25. 

Refer to the illustration above. The relationship shown in diagram 2 above is
a.
commensalism.
c.
mutualism.
b.
competition.
d.
parasitism.
 



 
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