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WorksheetsPopulation Dynamics part 1- 9 Elite
Total questions: 13
Worksheet time: 27mins
Name
Class
Date
1.
If the population of a certain predator increases, there is often _______ its prey
a)
a decrease the population of
b)
an increase of the population of
c)
great news for its prey of
d)
no impact found on
2.
Biotic or abiotic things that control the size of a population
a)
Limiting factor
b)
density- dependent factor
c)
density- independent factot
d)
tolerance
3.
The two species, Paramecium aurelia and Paramecium caudatum, which do not prey upon each other, fighting to grow in the same test tube is an example of which of the following?
a)
Competition
b)
Predation
c)
Emigration
d)
Immigration
4.
Living factors or organisms that affect an ecosystem
a)
abiotic factors
b)
species
c)
trophic level
d)
biotic factors
5.
Number of organisms per unit of living area
a)
Population density
b)
dispersion
c)
carrying capacity
d)
population growth rate
6.
Food, water, sunlight, air, soil are ___________ that are often __________.
a)
abiotic factors, limiting resources
b)
biotic factors, limiting resources
c)
abiotic factors, controllable
d)
biotic factors, found in rocks
7.
What happened to the wolf population between 1980 and 1982?
a)
it increased rapidly
b)
it decreased rapidly
8.
What was the moose population in 1975?
a)
30
b)
1600
c)
1200
d)
40
9.
In 1980 how many wolves were there?
a)
20
b)
30
c)
50
d)
60
10.
Which of the following are density dependent factors?
a)
competition for resources
b)
predation
c)
disease
d)
natural disasters
11.
Which of the following are examples of a density independent factors?
a)
forest fire
b)
seasonal cycles
c)
storms
d)
disease
12.
What type of growth curve is pictured?
a)
exponential
b)
logistic
c)
predator-prey
d)
invasive
13.
If a disease destroying wheat plants in a field swept through an ecosystem, what would happen to the bird population that feed off of the wheat in the the field ?
a)
The bird population would stay the same
b)
The bird population would increase
c)
The bird population would decrease
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