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Biology Ecology Review
Test Description: Review of the major concepts of ecology for 10th grade biology
Instructions: Answer all questions to get your test result.
1) If immigration and emigration are equal, what is the most important contributing factor for a slowed growth rate?
A
decreased birth rate
B
constant birth rate
C
increased birth rate
D
constant death rate
2) What type of growth pattern occurs when a population\'s growth rate slows or stops after a period of unrestricted growth?
A
exponential growth
B
growth density
C
logistic growth
D
multiple growth
3) When organisms move OUT of the population, this is known as:
A
succession
B
immigration
C
abandonment
D
emigration
4) Suflfur and nitrogen compounds in smog combine with water to form
A
ozone
B
ammonia
C
acid rain
D
chloroflurocarbons
5) What would be the most likely effect of in increase in the use of CFC\'s
A
ozone holes would get smaller
B
no effect on the ozone in the atomosphere
C
ozone holes would get larger
D
ozone layer would disappear
6) A population that grows until it reaches its carrying capacity usually has the shape of an ___
A
M
B
J
C
S
D
I
7) Unrestricted populations of organisms experience
A
biotic growth
B
linear growth
C
fertility
D
exponential growth
8) What must occur for a population to grow?
A
birthrate remains the same and death rate increases
B
birthrate and death rate are equal
C
birthrate must be lower than death rate
D
birthrate must be greater than the death rate
9) For a particular species, the carrying capacity is the maximum number of individuals that
A
the species could reach in a given time if all the offspring survive and reproduce
B
could be supported by an environment for a year
C
are in their post reproductive years
D
could be supported by a given environment indefinitely
10) As DDT moves up the trophic levels in food chains, or food webs, its concentration
A
increases
B
decreases
C
is eliminated
D
stays the same
*select an answer for all questions
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