Ecology Test 2 Review Question Preview (ID: 22019)


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Which factor can influence continual change in an ecosystem?
a) further disturbances
b) long-term climate changes
c) introduction of nonnative species
d) all of the these

What is one difference between primary and secondary succession?
a) Primary succession is slow, and secondary succession is rapid.
b) Secondary succession modifies the environment, and primary succession does not.
c) Primary succession modifies the environment, and secondary succession does not.
d) Secondary succession beings with simple plants, and primary succession begins with trees.

Different species can share the same habitat, but competition among them is reduced if they
a) reproduce at different times
b) eat less
c) increase their populations
d) occupy different niches

The final stage of ecological succession is ______________________.
a) a pioneer community
b) newly formed soil
c) an intertidal zone
d) a climax community

Ecological succession makes it possible for __________________________.
a) a forest to stand where once there was only bare rock.
b) weeds, grasses, and trees to grow in a vacant lot
c) trees to become mature
d) new species to survive in an environment

Secondary succession begins in a place that __________________.
a) was once the home of living organisms
b) has no soil
c) does not have simple plants
d) already has soil

A species on which other species in an ecosystem largely depend on, and it’s removal would devastate the ecosystem.
a) predator species
b) prey species
c) keystone species
d) parasitic species

Primary succession is ecological succession that begins in a place that ________________________.
a) does not have soil
b) does not have rock
c) does not have simple plants
d) already has soil

The way an organism makes its living, including its interactions with biotic and abiotic factors of its environment, is called the organism’s
a) habitat
b) niche
c) lifestyle
d) biome

Which of the following is an example of ecological succession?
a) gradual change from a pioneer community to a climax community
b) primary succession
c) secondary succession
d) all of these are correct

A small valley where the average temperature is usually higher than that of the surrounding countryside has its own
a) weather
b) climate
c) microclimate
d) rainfall

The first organisms to repopulate an area affected by a volcanic eruption are called
a) keystone species
b) climax species
c) primary producers
d) pioneer species

Fire, hurricanes, and other natural disturbances can result in
a) commensalims
b) parasitism
c) competition
d) succession

An example of a place with a microclimate is
a) a mountain range capped with ice
b) a forested park in a desert city
c) an orchid growing in a rain forest
d) coniferous trees in a temperate forest

A wolf pack hunts, kills, and feeds on a moose. In this interactions, the wolves are
a) hosts
b) prey
c) mutualists
d) predators

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