Name ______________________________ Class __________________ Date __________________
Skills Worksheet
Chapter 6 Concept Review
MATCHING
Match each example in the left column with the appropriate term from the right
column.
_____ 1. regions that have distinctive
climates and organisms
_____ 2. the broad band of coniferous forest
located just below the Arctic Circle
_____ 3. plant with thick, fleshy stems
_____ 4. sleeping through the dry season
_____ 5. characterized by dry conditions,
short summers, and thin soil
a.
b.
c.
d.
e.
f.
g.
h.
i.
j.
latitude
understory
savanna
estivation
succulent
altitude
biomes
tundra
permafrost
taiga
_____ 6. tropical and subtropical grasslands,
wet summers, dry winters
_____ 7. includes trees and shrubs adapted to shade
_____ 8. the distance north or south of the equator, measured in degrees
_____ 9. lies beneath the topsoil of the tundra
_____ 10. height of an object above sea level
MULTIPLE CHOICE
In the space provided, write the letter of the word or statement that best answers
the question or completes the sentence.
_____ 11. Thin soil, high humidity, and high rainfall represent a
a. tropical rain forest.
b. temperate rain forest.
c. desert.
d. grassland.
_____ 12. Birds that migrate during winter, coniferous plants, and cold
temperatures represent
a. the South Pole.
b. taiga.
c. a temperate rain forest.
d. a chaparral.
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Name ______________________________ Class __________________ Date __________________
Concept Review continued
_____ 13. The top layer in a tropical rain forest is the
a. canopy.
b. understory.
c. emergent layer.
d. tree line.
_____ 14. Extreme temperatures, abundant precipitation, rich, deep soils, and a
growing season of four to six months represent a
a. tropical rain forest.
b. taiga.
c. temperate deciduous forest.
d. savanna.
_____ 15. The biome with the highest species diversity is the
a. taiga.
b. tundra.
c. tropical rain forest.
d. savanna.
_____ 16. Hot summers and cold winters, low to moderate rainfall, few trees, and
rich, fertile soil represent a
a. tundra.
b. temperate grassland.
c. temperate deciduous forest.
d. desert.
_____ 17. As you move from the equator toward the North Pole, you would be
likely to see
a. rain forests, then deserts, then taiga.
b. tundra, then deserts, then grasslands.
c. grasslands, then tundra, then rain forests.
d. temperate deciduous forests, then taiga, then rain forests.
_____ 18. Factors that influence where plants grow include
a. longitude.
b. climate.
c. biome maps.
d. Both (a) and (b)
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Answer Key
conifer’s ability to affect the soil through
its needles. When its needles drop, they
acidify the soil surrounding the tree,
making the soil inhospitable for plants
that might otherwise grow near the conifer
and compete with it for water, nutrients,
and sunlight.
Concept Review
MATCHING
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
g
j
e
d
h
c
b
a
i
f
MULTIPLE CHOICE
11.
12.
13.
14.
15.
16.
17.
18.
a
b
c
c
c
b
a
b
AGREE OR DISAGREE
14. Answers may vary. Sample answer:Agree;
biome describes the general plant and
animal community that dominates a given
region. Example: different types of
deciduous forest are all considered
temperate deciduous forest. Also, biomes
contain ecosystems that are not included
in the overall biome profile. For example,
temperate forests and taiga contain fields
(grasslands).
15. Answers may vary. Sample answer:
Agree; while many of the native
grasslands of our planet have been
destroyed with the introduction of
farmland, this change was crucial to the
success of humans as a species. To
support the agriculture of our growing
populations, we needed to use the most
fertile land. The United States has been
particularly successful at grassland
agriculture.
16. Answers may vary. Sample answer:
Agree; many medicines come from plants
that grow only in the tropical rain forests,
which are being cleared rapidly for
activities such as logging and agriculture.
Tropical rain forests once covered about
20 percent of Earth’s surface but now
cover only about 7 percent. If the clearing
of rain forests continues at its present rate,
many rain forest species are likely to
become extinct. Many of these species are
plants that could be useful for fighting
diseases.
Critical Thinking
ANALOGIES
1.
2.
3.
4.
5.
b
b
d
c
c
6.
7.
8.
9.
10.
d
d
b
a
a
INTERPRETING OBSERVATIONS
11. Answers may vary. Sample answer: Plant
1 is a deciduous tree found in atemperate
forest. Its broad leaves help it absorb
energy in the summer while its height
shades out competition. The eaves drop in
autumn so that the tree can better survive
long winters when water is scarce or
frozen.
12. Answers may vary. Sample answer: Plant
2 is a cactus. Its succulent flesh stores
water, allowing it to weather the hot, dry
desert climate. Its stems have a waxy
coating to preserve water and spines to
protect it from predators. The cactus’s
long, shallow root system helps it collect
as much water as possible during the
desert’s infrequent rains.
13. Answers may vary. Sample answer: Plant
3 is a coniferous tree found in the taiga.
Its needle-like leaves help it to preserve
water which is scarce or frozen during the
winter, and its pyramidal shape helps it
shed heavy snow. Another adaptation is
the
REFINING CONCEPTS
17. Accept any reasonable answer. Sample
answer: An example of a sustainable
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