Which of the following is an adaptation of coniferous trees in the taiga?

They have a unique shape to accumulate snow

If you visited a savanna, you would likely see

large herds of grazing animals like rhinos, gazelle, giraffe

a forest biome w/ coniferous trees, pine, fir, and spruce

are ecosystems where both fresh and salt water mix

Which of the following best describes a population?

memebers of the same species living in the same place

Most pollutants that enter estuaries break down over time, yet they are still a problem because

it is the volume of the pollutants more than the time factor

Chaparral plants usually survive fires because

they can resprout from small amounts of plant matter

Grasslands, such as the prairies of North America,

threatened by soil erosion due to plowing and overgrazing

Plants play a crucial role in the carbon cycle because they

allow carbon to enter an ecosystem through photosynthesis

Consumers are organisms that

get solar or other energy indirectly

Which of the following best describes a tropical rain forest?

species of animals with specialized ways of surviving

are usually described by their vegetation

The community of a pond is made up of all the

populations of fish, insects, and other livining organisms

The energy consumed by organisms

can be stored as fats and sugars

often formed on the dry side of mountain ranges

Tropical rain forests are threatened by

deforestation and trade of rainforest plants and animals

often formed on the dry side of mountain ranges

Which of the following is NOT true about the temperate deciduous forest?

trees grow green leaves in the spring and fall in summer

has a layer of soil that is permanetly frozen beneath soil

As you travel from the North Pole toward the equator, you would expect to see

tundra, grassland, then tropical rain forest

Biomes with higher temperatures and less precipitation tend to have

shorter and less dense vegetation

Which of the following adaptations are used by animals of the Arctic Tundra?

Rodents burrow underground for winter

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Environmental Science EOQA 2 Benchmark Practice Test Ben-Hill

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Questions 45

Answers

1
One way that bacteria and fungi are important to the enviornment is that they
use the sun's energy to make their own food
are a major food source in many ecosystems
produce oxygen
break down dead organsisms
2
Which of the following is an adaptation of coniferous trees in the taiga?
they have leaves that retain water, due to shape
all of the above
They have a unique shape to accumulate snow
they have a shallow root system, due to acidic soil
3
Two threats to ocean ecosystems are
nutrient runoff and industrial waste
overfishing and entagelment of marine mammals in nets
all of the above
sewage and algal blooms
4
Swamps are commonly found on
forest clearings
bottoms of ponds or lakes
flat, poorly drained land
rocky hillsides
5
Single-celled organisms with cell walls but no nuclei are
protists
all of the above
bacteria
fungi
6
Which of the following is responsible for making nitrogen usable by organisms?
conversion of nitrogen into carbs by photosynthesis
absorbtion of nitrogen into water
decomposing bacteria
nitrogen-fixing bacteria
7
If you visited a savanna, you would likely see
a dense forest
a coastal ecosystem
large herds of grazing animals like rhinos, gazelle, giraffe
snow and ice
8
Taiga is
a forest biome w/ coniferous trees, pine, fir, and spruce
a dry, rocky biome found in South America
found mostly in Africa
a cold, treeless, desert-like biome found near the poles
9
Estuaries
are ecosystems where both fresh and salt water mix
prevent the development of salt marshes
are always freshwater ecosystems
are always saltwater ecosystems
10
Which of the following best describes a population?
all the red birds in an area
memebers of the same species living in the same place
all types of organisms living in the same place
all members of the same species
11
Most pollutants that enter estuaries break down over time, yet they are still a problem because
the pollutants eventually concentrate in the ocean
the pollutants break down into still more dangerous toxins
it is the volume of the pollutants more than the time factor
none of the above
12
What are the two main types of freshwater wetlands?
marshes and swamps
lakes and ponds
littoral and benthic zone
rivers and streams
13
If a bird eats the insect, how much energy goes to the next trophic level?
1%
50%
10%
90%
14
Which gas makes up 78% of the atmosphere?
nitrogen
hydrogen
carbon dioxide
oxygen
15
Chaparral plants usually survive fires because
they contain oils that act as a natural fire extinguisher
water is stored in their small, leathery leaves
they have deep root systems
they can resprout from small amounts of plant matter
16
Which kind of organism obtains energy only from producers?
herbivores
decomposers
omnivores
all of the above
17
Grasslands, such as the prairies of North America,
support a rich layer of dense grasses due to high rainfall
are suitable for corn and wheat, but not for soybeans
support no animal life
threatened by soil erosion due to plowing and overgrazing
18
Adaptations demonstrated by plants in tropical rain forests include
trees with buttresses
All of the above
orchids and vines that use tall tree trunks for support
herbs with large flat leaves in the understory
19
The energy in most ecosystems comes from
green plants
all of the above
wind
the sun
20
Plants play a crucial role in the carbon cycle because they
are chemically converted into fossil fuels when burned
have special bacteria that live in their root systems
allow carbon to enter an ecosystem through photosynthesis
do not release carbon dioxide during cellular respiration
21
Consumers are organisms that
eat only other animals species
occupy an ecosystem's lowest energy level
are also known as self-feeders
get solar or other energy indirectly
22
Which of the following best describes a tropical rain forest?
very few species of trees
species of animals with specialized ways of surviving
dense, thick soil that supports plants on the forest floor
plants and animals that are similar due to warmth and rain
23
Biomes
contain two ecosystems hense the name "biome"
all of the above
are usually described by their vegetation
exist in limited regions of the world
24
The community of a pond is made up of all the
populations of fish, insects, and other livining organisms
habitats in and around the water
abiotic factors in the water
resources organisms need
25
Which organism is likely to be at the bottom trophic level of a food chain?
killer whale
krill
leopard seal
algae
26
Animals that live in the desert
include camels, moose, and reptiles
are usually nocturnal
hibernate in the winter
usually have thin skin to absorb water
27
Which of the following are photosynthesis organisms?
intestianal bacteria
freshwater algae
deeply buried soil bacteria
fungal decomposers
28
What causes most coastal pollution in the United States?
industrial wastes and sewage
lakes and ponds
temperature changes
overfishing
29
The energy consumed by organisms
remains constant at all trophic levels
is not partially lost during digestion
undergoes magnification in food chains
can be stored as fats and sugars
30
Deserts are
often formed on the dry side of mountain ranges
found only in North America
never located in cooler climates
covered with sand and have no plant life
31
Tropical rain forests are threatened by
a decrease in the rainfall at the equator
deforestation and trade of rainforest plants and animals
a thinning of the soil
a decrease in the average temp. at the equator
32
What term is used to refer to the many feeding relationships that are possible in an ecosystem?
energy pyramid
food web
energy transfer
feed chain
33
Deserts are
covered with sand and have no plant life
found only in North America
often formed on the dry side of mountain ranges
never located in cooler climates
34
The deforestation of the rain forests may cuase climate change which, in turn, affect
acid precipitation
flooding
smog
habitat destruction
35
Which of the following is NOT true about the temperate deciduous forest?
trees grow green leaves in the spring and fall in summer
the soil is rich and plants cover the forest floor
both a and b
have animals like deer, squirrels, and bears
36
The tundra
is too cold to support insect life
is resistant to environemental damage b/c it is frozen
All of the above
has a layer of soil that is permanetly frozen beneath soil
37
As you travel from the North Pole toward the equator, you would expect to see
tundra, grassland, then tropical rain forest
taiga, desert, then tundra
temperate deciduous forest, taiga, tropical rain forest
tropical rainforest, desert, then taiga
38
Which of the following is NOT an ecosystem?
oak forest
coral reef
vacant lot
utility pole
39
Biomes with higher temperatures and less precipitation tend to have
taller and less dense vegetation
shorter and less dense vegetation
shorter and denser vegetation
taller and denser vegetation
40
Which of the following adaptations are used by animals of the Arctic Tundra?
deer and fox use seasonal camouflage
all of the above
Rodents burrow underground for winter
geese and caribu migrate to avoid predators
41
Which organism produces most of the food in an aquatic ecosystem?
fish
zooplanton
barnicle
phytoplankton
42
Which two kingdoms contain organisms that can use energy from the sun to make food?
protists and plants
fungi and protists
eubacteria and plants
plants and animals
43
Estuaries are very productive ecosystems because they receive fresh nutrients from
marshes and swamps
lakes and ponds
rivers and oceans
streams and springs
44
The types of organisms found in a pond or lake depend on
the amount of sunlight available
the temperature of water
the presence of nutrients
all of the abve
45
Which of the following is a threat to the coral reef?
all of the above
sewage
pesticides
oil spills

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