Life Science Fall 2015 Final Pt. 3 Of 3 Question Preview (ID: 28498)

Part 3 Of Ecology Final.[print questions]

What type of organism is at the basis of all food chains?
a) herbivore
b) carnivore
c) producer
d) consumer

Which of the following is NOT a freshwater ecosystem?
a) tidal pool
b) pond
c) river
d) lake

Humans are considered omnivores because
a) they eat animals
b) they eat plants
c) they are both secondary and tertiary consumers
d) they obtain energy from producers and consumers

Why is it so important to avoid pollution of freshwater ecosystems?
a) Freshwater ecosystems contain more species than marine ecosystems contain.
b) Freshwater ecosystems are the source of most of our drinking water.
c) Freshwater organisms are more important than marine organisms are.
d) There are more freshwater ecosystems than there are marine ecosystems.

Why might you find fewer photosynthetic organisms at deeper levels of an ocean?
a) The sun's rays cannot reach the deep ocean.
b) Photosynthetic organisms cannot survive in cold water.
c) Photosynthetic organisms cannot withstand extreme pressure.
d) Photosynthetic organisms only float and cannot sink.

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 least important members of the food chain.
c) There are more producers than any other organsims.
d) They are the source of energy for every other living thing.

What is the correct order of a food chain containing the following organisms: quail, desert shrub, coyote, snake?
a) coyote → snake → quail → desert shrub
b) quail → desert shrub → snake → coyote
c) desert shrub → quail → snake → coyote
d) desert shrub → snake → quail → coyote

How do abiotic factors and biotic factors differ?
a) Abiotic factors do not affect biotic factors.
b) Biotic factors are living, and abiotic factors are nonliving.
c) Only biotic factors are part of an ecosystem.
d) Abiotic factors in an ecosystem never change.

Which statement best describes the typical relationship of a terrestrial biome and its surrounding water community?
a) The terrestrial biome is highly dependent on the water community.
b) The terrestrial biome is unaffected by the water community.
c) The water community usually harms the terrestrial biome.
d) The water community provides only short-term benefits to the terrestrial biome.

Which type of aquatic environment covers 75 percent of Earth's surface?
a) freshwater
b) estuarine
c) marine
d) wetland

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) The gazelle death rate would increase.
c) The gazelle population would increase.
d) Gazelles would not be affected.

Which of the following is an example of parasitism?
a) clownfish living in a sea anemone
b) blue jays living in a maple tree
c) fleas living on a dog
d) wolves and rabbits living in the forest

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