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Intro To Ecology
Test Description: Intro to Ecology
Instructions: Answer all questions to get your test result.
1) The number of species on Earth
A
is exactly 1.5 million
B
has increased over the last 2000 years
C
is smaller than the number that occurred during the time of the dinosaurs
D
is decreasing rapidly
2) The thinning of the ozone layer is caused by
A
carbon monoxide
B
oxygen gas
C
carbon dioxide
D
CFCs
3) Which of the following is not one of the five main levels of organization within ecology?
A
atom
B
ecosystem
C
biosphere
D
community
4) An ecosystem includes
A
all the living and nonliving factors in an environment
B
all members of a species in the same area
C
all parts of Earth where life exists
D
all the members of one species
5) Which of the following is not true of models?
A
they can be tested by comparison with real situations
B
they are simplified systems that mimic the natural world
C
they exactly duplicate reality
D
they help scientist make predictions
6) Abiotic factors in an ecosystem can include
A
animals
B
microorganisms
C
plants
D
sunlight
7) An animal could migrate to avoid
A
a volcanic eruption
B
a hurricane
C
an extreme cold snap
D
cold temperatures in winter
8) A species' fundamental niche
A
changes in response to predators or competitors
B
is always as large as or larger than its realized niche
C
cannot be larger than its realized niche
D
can be larger or smaller than its realized niche
9) Which of the following is not a resource needed by animals?
A
food
B
oxygen
C
carbon dioxide
D
water
10) Which of the following is not true of an organism's tolerance for an environmental variable?
A
Its performance can be illustrated with a tolerance curve
B
Its tolerance levels cannot vary over the organisms life
C
Tolerance levels can change through acclimation
D
Its performace is usually best at intermediate values
11) Where an organism lives.
A
ecology
B
community
C
habitat
D
population
12) Organisms interacting in a specific area
A
Community
B
Habitat
C
Ecology
D
Poplulation
13) Global warming is
A
the warming of the atmosphere cause by heat radiation
B
the warming of the atmosphere caused by heat trapped by excess greenhouse gases
C
the warming of the atmosphere due an increase in solar activity
14) The mechanism that insulates the Earth from the deep freeze of space
A
global warming
B
ozone layer
C
atmospheric garden
D
greenhouse effect
15) Organisms that control their internal conditions by using energy are called
A
recruiters
B
dormants
C
regulators
D
conformers
16) The movement or an organisms to a more favorable habitat is called
A
dormancy
B
conformers
C
acclimation
D
migration
17) People that live in warmer climates tolerate heat more easily than individuals in colder climates, but individuals from cold climates are exposed to the warm are for a length of time, they gain the ability to tolerate it better. This is an example of
A
regulation
B
adaptation
C
acclimation
D
conformity
18) A species' way of life or the role it plays in the environment is called its
A
ecosystem
B
niche
C
habitat
D
acclimation
19) A generalist
A
can tolerate a large range of conditions and use a variety of resources
B
studies the interactions between organisms and their environment
C
can enter a state of reduced activity during periods of unfavorable conditions
D
have narrow niches
20) Conformers are organisms that
A
None of these
B
change over many generations
C
use energy to control internal conditions
D
do not regulate internal conditions
*select an answer for all questions
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