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WorksheetsPopulations and Communities
Total questions: 23
Worksheet time: 8mins
Name
Class
Date
1.
All of the following are examples of limiting factors for a population except...
a)
space
b)
food
c)
time
d)
weather
2.
In which type of interaction do both species benefit?
a)
predation
b)
mutualism
c)
commensalism
d)
parasitism
3.
Which of these relationships is an example of parasitism?
a)
a bird building a nest on a tree branch
b)
a bat pollinating a saguaro cactus
c)
a flea living on a cat's blood
d)
ants protecting a tree that produces the ants' only food
4.
The series of predictable changes that occur in a community over time is called
a)
natural selection
b)
ecology
c)
commensalism
d)
succession
5.
In general, which of the following is a true statement about population size?
a)
If birth rate < death rate, population size increases
b)
If death rate < birth rate, population size decreases
c)
If birth rate > death rate, population size increases
d)
If death rate > birth rate, population size increases
6.
A freshwater lake has a muddy bottom, which is home to different types of algae and other organisms. Many species of fish feed on the algae. Which of the following is an ABIOTIC factor in this ecosystem?
a)
the temperature of the water
b)
the color of the algae
c)
the number of species of fish
d)
the amount of food available to the fish
7.
Which of the following lists the levels of organization in an ecosystem from the smallest unit to the largest?
a)
population, organism, community, ecosystem
b)
organism, population, ecosystem, community
c)
organism, community, population, ecosystem
d)
organism, population, community, ecosystem
8.
All the living and nonliving things that interact in a particular area make up a(n)
a)
ecosystem
b)
population
c)
community
d)
biome
9.
All the different populations that live together in an area make up a(n)
a)
ecosystem
b)
community
c)
habitat
d)
organism
10.
Counting hawks with and without bands on their legs is
a)
direct observation
b)
indirect observation
c)
sampling
d)
mark and recapture
11.
Counting the number of nests in an area is an example of
a)
direct observation
b)
indirect observation
c)
sampling
d)
mark and recapture
12.
The way a species makes its living is ...
a)
natural selection
b)
adaptation
c)
niche
13.
How do you think an increase in the fox population affected the hare population?
a)
The hares decreased beacause there were fewer food sources
b)
The hares increased because there were more food sources
c)
The hares decreased because there were more fox to prey on them
d)
The hares increased because they had more space
14.
In which of the following areas would primary succession most likely occur?
a)
A new island formed by the eruption of an undersea volcano
b)
A clearing in a forest left by cutting down the trees
c)
An abandon junkyard
15.
A symbiotic relationship in which one species benefits and the other is harmed
a)
mutualism
b)
predation
c)
commensalism
d)
parasitism
16.
Which species are often pioneer species?
a)
cattails and algae
b)
pinetrees and oaks
c)
sagebrush and tumbleweed
d)
lichen and moss
17.
A symbiotic relationship in which one organism benefits and the other species is neither harmed or helped
a)
mutualism
b)
predation
c)
commensalism
d)
parasitism
18.
An interaction in which one organism kills and eats another organism
a)
competition
b)
mutualism
c)
commensalism
d)
predation
19.
Environmental conditions that prevent populations from increasing
a)
abiotic factors
b)
carrying capacity
c)
limiting factors
d)
biotic factors
20.
The largest population that an environment can support
a)
carrying capacity
b)
ecosystem
c)
adaptation
d)
limiting factors
21.
A(n) ______ is a group of organisms that are physically similar and can mate with each other to produce offspring that can also mate and reproduce.
a)
organism
b)
species
c)
population
d)
community
22.
A term that means to leave a population is
a)
emigration
b)
immigration
c)
sampling
d)
population density
23.
A prairie dog, a hawk, and a badger all are members of the same ________________.
a)
niche
b)
community
c)
species
d)
population
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