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Basic Ecology
Test Description: Midterm review quiz
Instructions: Answer all questions to get your test result.
1) After a forest fire, the ecosystem will slowly begin to renew itself. This is an example of
A
third-level succession
B
a climax community
C
primary succession
D
secondary succession
2) What is the term for organisms, including plants and algae, that create their own food?
A
consumers
B
decomposers
C
producers
D
legumes
3) When energy is transferred between trophic levels, the amount of available energy that moves up to the next level is
A
50%
B
25%
C
90%
D
10%
4) When the environment changes too quickly for an organism to adapt, what will occur?
A
evolution
B
extinction
C
speciation
D
genetic drift
5) Which best describe evolutionary success?
A
an organism has adaptive traits and produces more offspring than survive
B
an organism has more offspring than others in the population
C
an organism has traits different from the rest of its population that allows it to compete more successfully
D
an organism has adaptive traits and is able to pass those traits on to many offspring that also reproduce
6) A beehive depends on pollen from flowers to survive. Flowers depend on bees to pollinate them. This relationship is
A
symbiotic
B
mutualistic
C
commensalist
D
parasitic
7) In a food web that has grass, mice, deer, coyotes, and hawks, which species is likely to have the largest population?
A
hawks
B
grass
C
mice
D
coyotes
8) A population of wolves is reintroduced into Yellowstone National Park. In the beginning, the wolf population grows exponentially. Then the population growth slows. The new pattern is known as
A
exponential growth
B
limiting factors
C
carrying capacity
D
logistical growth
9) A populations growth rate is determined by births, deaths,
A
biotic potential and emigration
B
immigration and emigration
C
immigration and migration
D
migration and biotic potential
10) An example of a density dependent limiting factor for population growth is
A
a sudden flood
B
an earthquake
C
an avalanche
D
the amount of available food
*select an answer for all questions
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