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Life Science Fall 2015 Final Pt. 3 Of 3
Test Description: Part 3 of Ecology final
Instructions: Answer all questions to get your test result.
1) What type of organism is at the basis of all food chains?
A
herbivore
B
carnivore
C
producer
D
consumer
2) Which of the following is NOT a freshwater ecosystem?
A
tidal pool
B
lake
C
river
D
pond
3) Humans are considered omnivores because
A
they eat plants
B
they obtain energy from producers and consumers
C
they are both secondary and tertiary consumers
D
they eat animals
4) Why is it so important to avoid pollution of freshwater ecosystems?
A
Freshwater organisms are more important than marine organisms are.
B
There are more freshwater ecosystems than there are marine ecosystems.
C
Freshwater ecosystems contain more species than marine ecosystems contain.
D
Freshwater ecosystems are the source of most of our drinking water.
5) Why might you find fewer photosynthetic organisms at deeper levels of an ocean?
A
Photosynthetic organisms cannot survive in cold water.
B
The sun's rays cannot reach the deep ocean.
C
Photosynthetic organisms only float and cannot sink.
D
Photosynthetic organisms cannot withstand extreme pressure.
6) Which statement best explains why producers are located at the bottom of the energy pyramid?
A
They require more energy than other organisms.
B
They are the source of energy for every other living thing.
C
They are the least important members of the food chain.
D
There are more producers than any other organsims.
7) What is the correct order of a food chain containing the following organisms: quail, desert shrub, coyote, snake?
A
quail → desert shrub → snake → coyote
B
desert shrub → snake → quail → coyote
C
coyote → snake → quail → desert shrub
D
desert shrub → quail → snake → coyote
8) How do abiotic factors and biotic factors differ?
A
Biotic factors are living, and abiotic factors are nonliving.
B
Abiotic factors in an ecosystem never change.
C
Abiotic factors do not affect biotic factors.
D
Only biotic factors are part of an ecosystem.
9) Which statement best describes the typical relationship of a terrestrial biome and its surrounding water community?
A
The water community usually harms the terrestrial biome.
B
The water community provides only short-term benefits to the terrestrial biome.
C
The terrestrial biome is highly dependent on the water community.
D
The terrestrial biome is unaffected by the water community.
10) Which type of aquatic environment covers 75 percent of Earth's surface?
A
marine
B
estuarine
C
wetland
D
freshwater
11) In parts of Africa, gazelles and lions are part of the same community. Gazelles are a food source for lions. How would an increase in lion birth rate most likely affect the gazelles?
A
The gazelle birth rate would also increase.
B
Gazelles would not be affected.
C
The gazelle population would increase.
D
The gazelle death rate would increase.
12) Which of the following is an example of parasitism?
A
clownfish living in a sea anemone
B
wolves and rabbits living in the forest
C
fleas living on a dog
D
blue jays living in a maple tree
*select an answer for all questions
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