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WorksheetsPopulation Ecology
Total questions: 19
Worksheet time: 3hrs 3mins
Name
Class
Date
1.
What type of factor has an increasing impact as the population size increases?
a)
density-independent
b)
density-dependent
c)
cohort effect
d)
survivorship factor
2.
Factors like predation can have a positive benefit to the population of prey organisms because predators tend to keep prey populations below their ___________.
a)
carrying capacity
b)
sustainibility number
c)
exponential growth point
d)
competition level
3.
What factor describes when populations increase because animals are moving into a population?
a)
Emigration
b)
Limiting Factors
c)
Immigration
d)
Exponential Growth
4.
What factor describes when populations decrease because animals are moving out of a population?
a)
Emigration
b)
Limiting Factors
c)
Immigration
d)
Exponential Growth
5.
Which limiting factor is independent of the number of individuals in a population?
a)
competition
b)
parasitism/disease
c)
stress
d)
natural disasters
6.
Largest number of individuals of a population that the environment can support...
a)
carrying capacity
b)
population crash
c)
lag phase
d)
mutualism
7.
When a population grows past the ecosystem's carrying capacity, what happens to the population?
a)
Continues to grow
b)
The population starts to die off to return to carrying capcity
c)
The population will go extinct due to lack of resources
d)
The population grows then finds a new carrying capacity
8.
Food, water, sunlight, shelter, and space are resources that are often __________.
a)
limiting factors
b)
wet
c)
messy
d)
found in rocks
9.
A population is...
a)
A group of one species in one area
b)
Multiple species that live in one area
c)
All of the living and nonliving things in an area
d)
None of these
10.
What will happen to the population when the death rate is larger than the birth rate?
a)
grow
b)
shrink
c)
stay the same
d)
None of these
11.
As a population of a species increases within a territory, which of the following most likely also increases?
a)
Immigration
b)
Food supply
c)
Carrying capacity
d)
Competition
12.
Nesting birds often space themselves evenly from other nests. This pattern is called
a)
clumped dispersion.
b)
uniform dispersion.
c)
random dispersion
d)
scatter dispersion
13.
relationship in which two species live closely together
a)
resource
b)
mutualism
c)
succession
d)
symbiosis
14.
Where an organism lives
a)
habitat
b)
niche
c)
heterotrogh
d)
biosphere
15.
The nonliving aspects of an ecosystem.
a)
Abiotic factors
b)
Biotic factors
16.
The living portions of the ecosystem.
a)
Biotic factors
b)
Abiotic factors
17.
Study of interactions between organisms and their environment
a)
niche
b)
community
c)
ecology
d)
ecosystem
18.
A collection of organisms that belong to different populations but all live in the same area and interact with one another.
a)
Population
b)
Ecosystem
c)
Community
d)
Ecosphere
19.
The average number of people per square mile is...
a)
Birth rate
b)
Land area
c)
Population density
d)
too many
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