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WorksheetsChapter 6 Test
Total questions: 42
Worksheet time: 42mins
Name
Class
Date
1.
The day-to-day conditions in Earth's atmosphere, such as �sunny and humid�, describe the
a)
climate
b)
climatograph
c)
weather
d)
biome
2.
Which biome would have the highest net primary production?
a)
savanna
b)
boreal forest
c)
coral reefs
d)
desert
3.
In aquatic ecosystems, net primary productivity is related to
a)
whether the water is fresh water or salt water
b)
the speed at which the water moves
c)
available sunlight and nutrients
d)
waves and tides
4.
In the graph, the solid line represents precipitation and the dashed line represents temperature. What type of conditions are indicated by the areas of the graph labeled (A)?
a)
hot
b)
moist
c)
dry
d)
freezing
5.
What percentage of Earth's surface is covered in water?
a)
75%
b)
90%
c)
25%
d)
50%
6.
Which of the following describes the aphotic zone in an aquatic ecosystem?
a)
the very bottom of a body of water
b)
the zone where no sunlight penetrates and photosynthesis cannot occur
c)
the shallow, near-shore zone
d)
the uppermost layer where there is enough sunlight for photosynthesis
7.
Which zone of an aquatic ecosystem tends to have more life�both producers and consumers?
a)
aphotic zone
b)
photic zone
c)
benthic zone
d)
none
8.
Which ecosystems are considered standing freshwater ecosystems?
a)
lakes
b)
wetlands
c)
ponds
d)
all of these
9.
A bog is a wetland that
a)
is entirely covered with thick, floating mats of vegetation
b)
has shallow water and tall, grasslike plants
c)
has shallow water and woody shrubs and trees
d)
has mostly salt water
10.
What ocean zone begins at the edge of the continental shelf and then extends outward into deeper water?
a)
intertidal
b)
open ocean
c)
littoral
d)
neritic
11.
Ecologists use similarities between ecosystems to classify them into broad categories called
a)
biomes
b)
littoral zone
c)
estuaries
d)
benthic zone
12.
Which biome would have the lowest net primary production?
a)
tropical rain forest
b)
temperate grassland
c)
coral reefs
d)
desert
13.
Over a given unit of time, the rate at which plants and algae convert solar or chemical energy into energy stored in the bonds of organic sugars is called
a)
natural selection
b)
gross primary production
c)
salinity
d)
estivation
14.
Why do shorter trees and plants that make up the understory in tropical rain forests have large, flat leaves?
a)
to shade themselves from excessive sunlight
b)
to create habitat for forest insects
c)
to offer protection from rain
d)
to allow maximum surface for light absorption
15.
In temperate rain forests, trees such as cedars and spruces, which do not lose their leaves at any time of year, are called
a)
coniferous
b)
succulent
c)
chapparral
d)
deciduous
16.
To help them survive in the tundra, caribou have various adaptations, such as
a)
thin coats of fur to prevent overheating
b)
wide hooves for travel on mud and snow
c)
a diet that consists mostly of deciduous tree leaves
d)
the ability to hibernate
17.
Criteria such as salinity, depth, and whether the water is flowing or standing are used by scientists to
a)
classify aquatic ecosystems
b)
measure net primary productivity in lakes
c)
distinguish aquatic ecosystems
d)
determine the number of species in a body of water
18.
Water with a salinity that is greater than fresh water but less than salt water is classified as
a)
photic
b)
aphotic
c)
brackish
d)
littoral
19.
Which zone of an aquatic ecosystem tends to have the highest temperatures?
a)
photic zone
b)
aphotic zone
c)
benthic zone
d)
none--all have roughly the same temperatures
20.
Which statement about the littoral zone in a lake or pond is true?
a)
There are no rooted aquatic plants
b)
it has deep water
c)
it is far from the shore
d)
it is rich in invertebrates
21.
Marshes, swamps, and bogs are examples of
a)
terrestrial biomes
b)
freshwater wetlands
c)
estuaries
d)
ocean zones
22.
What is the difference between swamps and freshwater marshes?
a)
Swamps have deep water, but marshes have shallow water
b)
Swamps have mostly woody shrubs and trees, but marshes have mostly grasses
c)
Swamps usually have salt water, but marshes have fresh water
d)
swamps have lots of wildlife, but marshes do not
23.
Where rivers flow into the ocean, mixing fresh water with salt water, brackish ecosystems occur which are called
a)
bogs
b)
flood plains
c)
estuaries
d)
limnetic zones
24.
In which ocean zones do crabs, mussels, anemone, barnacles, and sea stars live?
a)
neritic
b)
intertidal
c)
open ocean
d)
aphotic
25.
What is the name of the type of large brown algae that grows from the ocean floor of continental shelves, reaching upward toward the sunlit surface?
a)
coral
b)
chiton
c)
kelp
d)
phytoplankton
26.
The average conditions of the atmosphere in a particular area are referred to as the area�s
a)
weather
b)
latitude
c)
ecosystem
d)
climate
27.
How does an area�s weather differ from the area�s climate?
a)
weather invovles temperature and precipitation and climate involves only temperature
b)
an area's weather depends on where it is located on Earth and the area's climate does not
c)
an area's weather does not change very much and an area's climate changes many times
d)
weather is the area's day to day conditions and climate is the area's average conditions
28.
Climate is a global factor that produces
a)
Earth's unique ocean and atmosphere
b)
the shape and elevation of landmasses
c)
a wide range of environmental conditions that shape communities
d)
solar energy within the atmosphere
29.
Which biome is characterized by very low temperatures, little precipitation, and permafrost?
a)
desert
b)
temperate forest
c)
tundra
d)
tropical dry forest
30.
Which two biomes have the least precipitation?
a)
tropical rain forest and temperate grassland
b)
tropical savanna and tropical dry forest
c)
tundra and desert
d)
boreal forest and temperate woodland and shrubland
31.
Which biome has long cold winters and short summers, and is home to conifers?
a)
savanna
b)
temperate woodland
c)
tundra
d)
boreal forest
32.
Which animal would be found in the biome that has cold to moderate winters, warm summers, and fertile soils; and is home to a variety of vegetation, such as coniferous trees, broadleaf deciduous trees, flowering shrubs, and ferns?
a)
whitetail deer
b)
polar bear
c)
iguana
d)
caribou
33.
Which landforms are not classified into a major biome?
a)
prairies
b)
mountain ranges
c)
coastlines
d)
islands
34.
The North Pole and the South Poles are
a)
classified as tundra biomes
b)
not home to any animals
c)
not classified into major biomes
d)
part of aquatic ecosystems
35.
Which aquatic ecosystem is likely to be the warmest?
a)
a benthic system in the middle of the ocean
b)
an open ocean system near Antartica
c)
a costal ocean system at a temperate latitude
d)
an intertidal zone in a polar region
36.
The nutrient availability of aquatic ecosystems is the
a)
amount of nitrogen, oxygen, and other elements dissolved in water
b)
number of other organisms present in the water
c)
amount of rainfall the water receives
d)
number of different animal species living in the water
37.
Which of the following is NOT a freshwater ecosystem?
a)
a river
b)
a lake
c)
an estuary
d)
a stream
38.
Freshwater ecosystems that often originate from underground sources in mountains or hills are
a)
estuaries
b)
rivers and streams
c)
lakes and ponds
d)
wetlands
39.
Which is one way a freshwater wetland differs from a lake or pond?
a)
water flows in a lake or pond but never flows in a wetland
b)
wetlands are nesting areas for birds, but lakes and ponds are not
c)
water does not always cover a wetland as it does a lake or pond
d)
wetlands are salty, but lakes and ponds are fresh
40.
A wetland that contains a mixture of fresh water and salt water is called
a)
an estuary
b)
a stream
c)
a river
d)
a pond
41.
Estuaries are commercially important because
a)
fish species that people buy and sell live in estuaries
b)
tall buildings can be built in estuaries
c)
lumber trees grow in estuaries
d)
fossil fuels are found in estuaries
42.
The photic zone
a)
extends to the bottom of the open ocean
b)
extends to a depth of about 200 meters
c)
is deep, cold, and permanently dark
d)
is where chemosynsthetic bacteria are the producers
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