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WorksheetsChapter 8 Review
Total questions: 15
Worksheet time: 8mins
Name
Class
Date
1.
An organism's habitat must provide all of the following EXCEPT
a)
food
b)
water
c)
predators
d)
shelter
2.
The nonliving parts of an ecosystem are called
a)
populations.
b)
organisms.
c)
biotic factors.
d)
abiotic factors.
3.
To produce their own food, algae and plants use the abiotic factors sunlight, carbon dioxide, and
a)
soil.
b)
salt.
c)
water.
d)
bacteria.
4.
A population is all the members of one species living in a particular
a)
area.
b)
habitat.
c)
ecosystem.
d)
community.
5.
A group of antelope leaving the herd in search of better grassland is an example of
a)
immigration.
b)
emigration.
c)
increasing birth rate.
d)
decreasing death rate.
6.
If you count 20 beetles in a garden measuring 5 square meters, the population density of the beetles is
a)
100 beetles per square meter.
b)
20 beetles per square meter.
c)
5 beetles per square meter.
d)
4 beetles per square meter.
7.
An organism's particular role in its habitat, or when and how it survives, is called its
a)
carrying capacity.
b)
ecosystem.
c)
competition.
d)
niche.
8.
All of the following are examples of limiting factors EXCEPT
a)
food.
b)
soil.
c)
space.
d)
weather conditions.
9.
Which of the following is an example of a predator adaptation?
a)
a porcupine's needles
b)
a shark's powerful jaws
c)
a frog's bright colors
d)
a plant's poisonous chemicals
10.
The part of an ecosystem where an organism lives and feeds is called the organism's ____________________.
a)
adaptation
b)
ecosystem
c)
habitat
d)
emigration
11.
All the biotic and abiotic factors in an area together make up a(n) ____________________.
a)
habitat
b)
ecosystem
c)
emigration
d)
adaptation
12.
A hawk building its nest on an arm of a saguaro cactus is an example of
a)
commensalism.
b)
mutualism.
c)
parasitism.
d)
predation.
13.
The thick fur of a polar bear is a(n) ____________________ that allows the bear to live successfully in its environment.
a)
ecosystem
b)
abiotic
c)
emigration
d)
adaptation
14.
Water, sunlight, and soil are ____________________ factors in an ecosystem.
a)
abiotic
b)
biotic
c)
adapation
d)
ecosystem
15.
A group of zebras breaking off from a herd decreases the size of the herd population through ____________________.
a)
immigration
b)
emigration
c)
adaptation
d)
habitat
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