Even self-contained ecosystems such as terrariums and bio-domes need a constant input of
energy.
waste.
fertiliz
er.
oxygen
. Farmers make fertilizer out of ground up bones, crushed rock, and bird poop. Bird poop is
used mainly to add ______ to the soil.
carbon
oxygen
phosphor
ous
nitrogen Food webs are more realistic than food chains because they show how one species can be both a secondary and a primary consumer.
. how one species lives off another.
how toxins accumulate as we look up trophic levels.
how all consumers depend on producers. Freshwater and saltwater biomes meet to provide a rich environment for oysters and crabs
and for the reproduction of many fish. This rich aquatic environment is the
intertidal
zone.
coral reef.
estuary.
benthic
biome. How do animals at the top of the food chain accumulate such high levels of toxic material?
None of the above choices are correct.
Small animals accumulate toxic material from the many plants
they eat.
All of the above choices are correct.
Large animals accumulate toxic material from the many small
animals they eat.
Plants that contain toxic material are eaten by many small
animals. How do broad-leaf trees conserve water in the winter? They lose their leaves.
They change color. Their leaves become
needles.
They drink less. How does pollution by nitrogen and phosphorous pollution from sewage and fertilizers
deplete oxygen from a lake? They don’t; they actually increase the oxygen content of the lake.
by chemical reaction with oxygen
by forming a chemical blanket on the surface
by stimulating the growth of algae that die and are decomposed
How much energy is passed from one trophic level to the next?
6080%
20- 40%
5-20%
4060%
80100% Hundred of millions of rabbits are spread over Australia eating the grass needed by native
animals, causing soil erosion, and causing livestock to break their legs. This all started when
a ranch brought in _____ pairs of rabbits and released them for hunting.
2
12,0
00
120
12 In any trophic level, what is the most energy used for?
production of
biomass
cellular
metabolism
reproduction
growth In the Hubbard Brook Experiment in which clear-cutting the forest and applying herbicides to
prevent plant growth, rain and water runoff leached what chemical from the soil resulting in
decreased fertility of the soil and in water unsafe to drink?
nitrogen
potassiu
m
phosphor ous
calcium In which environment would you expect to find the most dissolved oxygen available to
support fish? Between Greenland and Iceland
In a tropical swamp Between Hawaii and Guam
Near the equator Mosquitos cannot live in the tundra because of Oh, but the tundra has swarms of mosquitos!
the lack of rainfall.
cold winters. not enough blood to suck. Most of the Earth’s total primary production of organic chemicals occurs in the
grasslan
ds.
deserts.
rain
forests.
oceans. Nitrogen fixation
causes nitrogen to stick to surfaces.
adds neutrons to nitrogen atoms.
combines gaseous nitrogen with hydrogen and oxygen.
repairs broken nitrogen atoms.
is a psychological problem for nitrogenous
groupies. Over the oceans
there is more rain than evaporation.
there is the same amount rain and
evaporation.
there is more evaporation than rain. Plant litter, dead animals, and animal waste is called
pathogenic
detritus
abiotic
reservoir
biotic
reservoir Silent spring was a very important book alerting the public to terrible effects of the overuse
of pesticides like DDT which was killing not only insects but was killing off birds and was
appearing in human breast milk. It was written by
Rachael Carson.
Rosalind
Franklin.
Beatrice Potter.
Barbara
McClintock.
Madame Curé. Some poison flowers produce a substance to protect themselves from Heliconius caterpillars.
What is that substance?
sugar
strychni
ne
mescali
ne
nicotine
morphi
ne Species diversity is greatest when
relative abundance of species is
greatest.
relative abundance of species is
least.
relative abundance of species is
equal. Species whose main defense is a noxious taste or a painful sting tend to be
large.
camouflag
ed.
colorful.
hidden. Stable ecosystems
often depend on continuous local
disturbances.
cannot stand any disturbances. contain many horses.
can survive the loss of a keystone
species. The Hubbard Brook Experiment demonstrated that acid rain removed what from the soil? It
had to be added back to allow plant growth.
nitrogen
potassiu
m
phosphor
ous
calcium The Sahara desert is getting bigger because of All of these choices are correct.
more people being at its edge.
None of these choices is correct.
dry-land farming.
overgrazing. The activities of people have caused and are causing
All of the above choices are
correct.
chemical pollution of water, soil,
and air.
massive soil erosion.
changes in local and global
climates.
None of the above choices is
correct. The amount of solar energy converted to organic compounds is called realized radiant
potential.
insolation.
primary production.
radiant potential. The breakdown of organic material into inorganic material is called
detritus
feeding.
digestion.
composting.
decompositi
on. The dominant plant-eating animals in the savanna are
horses.
zebra.
cattle.
kangaro
os.
buffalo.
giraffe.
antelop
e.
insects. The extensive grassland with scattered trees is a/an chaparral.
tundra.
savanna.
taiga. The floor of a tropical rain forest is typically dark with nutrient-rich soil.
light with nutrient-poor soil.
dark with nutrient-poor soil.
light with nutrient-rich soil.Even self-contained ecosystems such as terrariums and bio-domes need a constant input of

energy.
waste.
fertiliz
er.
oxygen
. Farmers make fertilizer out of ground up bones, crushed rock, and bird poop. Bird poop is
used mainly to add ______ to the soil.
carbon
oxygen
phosphor
ous
nitrogen Food webs are more realistic than food chains because they show how one species can be both a secondary and a primary consumer.
. how one species lives off another.
how toxins accumulate as we look up trophic levels.
how all consumers depend on producers. Freshwater and saltwater biomes meet to provide a rich environment for oysters and crabs
and for the reproduction of many fish. This rich aquatic environment is the
intertidal
zone.
coral reef.
estuary.
benthic
biome. How do animals at the top of the food chain accumulate such high levels of toxic material?
None of the above choices are correct.
Small animals accumulate toxic material from the many plants
they eat.
All of the above choices are correct.
Large animals accumulate toxic material from the many small
animals they eat.
Plants that contain toxic material are eaten by many small
animals. How do broad-leaf trees conserve water in the winter? They lose their leaves.
They change color. Their leaves become
needles.
They drink less. How does pollution by nitrogen and phosphorous pollution from sewage and fertilizers
deplete oxygen from a lake? They don’t; they actually increase the oxygen content of the lake.
by chemical reaction with oxygen
by forming a chemical blanket on the surface
by stimulating the growth of algae that die and are decomposed
How much energy is passed from one trophic level to the next?
6080%
20- 40%
5-20%
4060%
80100% Hundred of millions of rabbits are spread over Australia eating the grass needed by native
animals, causing soil erosion, and causing livestock to break their legs. This all started when
a ranch brought in _____ pairs of rabbits and released them for hunting.
2
12,0
00
120
12 In any trophic level, what is the most energy used for?
production of
biomass
cellular
metabolism
reproduction
growth In the Hubbard Brook Experiment in which clear-cutting the forest and applying herbicides to
prevent plant growth, rain and water runoff leached what chemical from the soil resulting in
decreased fertility of the soil and in water unsafe to drink?
nitrogen
potassiu
m
phosphor ous
calcium In which environment would you expect to find the most dissolved oxygen available to
support fish? Between Greenland and Iceland
In a tropical swamp Between Hawaii and Guam
Near the equator Mosquitos cannot live in the tundra because of Oh, but the tundra has swarms of mosquitos!
the lack of rainfall.
cold winters. not enough blood to suck. Most of the Earth’s total primary production of organic chemicals occurs in the
grasslan
ds.
deserts.
rain
forests.
oceans. Nitrogen fixation
causes nitrogen to stick to surfaces.
adds neutrons to nitrogen atoms.
combines gaseous nitrogen with hydrogen and oxygen.
repairs broken nitrogen atoms.
is a psychological problem for nitrogenous
groupies. Over the oceans
there is more rain than evaporation.
there is the same amount rain and
evaporation.
there is more evaporation than rain. Plant litter, dead animals, and animal waste is called
pathogenic
detritus
abiotic
reservoir
biotic
reservoir Silent spring was a very important book alerting the public to terrible effects of the overuse
of pesticides like DDT which was killing not only insects but was killing off birds and was
appearing in human breast milk. It was written by
Rachael Carson.
Rosalind
Franklin.
Beatrice Potter.
Barbara
McClintock.
Madame Curé. Some poison flowers produce a substance to protect themselves from Heliconius caterpillars.
What is that substance?
sugar
strychni
ne
mescali
ne
nicotine
morphi
ne Species diversity is greatest when
relative abundance of species is
greatest.
relative abundance of species is
least.
relative abundance of species is
equal. Species whose main defense is a noxious taste or a painful sting tend to be
large.
camouflag
ed.
colorful.
hidden. Stable ecosystems
often depend on continuous local
disturbances.
cannot stand any disturbances. contain many horses.
can survive the loss of a keystone
species. The Hubbard Brook Experiment demonstrated that acid rain removed what from the soil? It
had to be added back to allow plant growth.
nitrogen
potassiu
m
phosphor
ous
calcium The Sahara desert is getting bigger because of All of these choices are correct.
more people being at its edge.
None of these choices is correct.
dry-land farming.
overgrazing. The activities of people have caused and are causing
All of the above choices are
correct.
chemical pollution of water, soil,
and air.
massive soil erosion.
changes in local and global
climates.
None of the above choices is
correct. The amount of solar energy converted to organic compounds is called realized radiant
potential.
insolation.
primary production.
radiant potential. The breakdown of organic material into inorganic material is called
detritus
feeding.
digestion.
composting.
decompositi
on. The dominant plant-eating animals in the savanna are
horses.
zebra.
cattle.
kangaro
os.
buffalo.
giraffe.
antelop
e.
insects. The extensive grassland with scattered trees is a/an chaparral.
tundra.
savanna.
taiga. The floor of a tropical rain forest is typically dark with nutrient-rich soil.
light with nutrient-poor soil.
dark with nutrient-poor soil.
light with nutrient-rich soil.

Even self-contained ecosystems such as terrariums and bio-domes need a constant input of
energy.
waste.
fertiliz
er.
oxygen
. Farmers make fertilizer out of ground up bones, crushed rock, and bird poop. Bird poop is
used mainly to add ______ to the soil.
carbon
oxygen
phosphor
ous
nitrogen Food webs are more realistic than food chains because they show how one species can be both a secondary and a primary consumer.
. how one species lives off another.
how toxins accumulate as we look up trophic levels.
how all consumers depend on producers. Freshwater and saltwater biomes meet to provide a rich environment for oysters and crabs
and for the reproduction of many fish. This rich aquatic environment is the
intertidal
zone.
coral reef.
estuary.
benthic
biome. How do animals at the top of the food chain accumulate such high levels of toxic material?
None of the above choices are correct.
Small animals accumulate toxic material from the many plants
they eat.
All of the above choices are correct.
Large animals accumulate toxic material from the many small
animals they eat.
Plants that contain toxic material are eaten by many small
animals. How do broad-leaf trees conserve water in the winter? They lose their leaves.
They change color. Their leaves become
needles.
They drink less. How does pollution by nitrogen and phosphorous pollution from sewage and fertilizers
deplete oxygen from a lake? They don’t; they actually increase the oxygen content of the lake.
by chemical reaction with oxygen
by forming a chemical blanket on the surface
by stimulating the growth of algae that die and are decomposed
How much energy is passed from one trophic level to the next?
6080%
20- 40%
5-20%
4060%
80100% Hundred of millions of rabbits are spread over Australia eating the grass needed by native
animals, causing soil erosion, and causing livestock to break their legs. This all started when
a ranch brought in _____ pairs of rabbits and released them for hunting.
2
12,0
00
120
12 In any trophic level, what is the most energy used for?
production of
biomass
cellular
metabolism
reproduction
growth In the Hubbard Brook Experiment in which clear-cutting the forest and applying herbicides to
prevent plant growth, rain and water runoff leached what chemical from the soil resulting in
decreased fertility of the soil and in water unsafe to drink?
nitrogen
potassiu
m
phosphor ous
calcium In which environment would you expect to find the most dissolved oxygen available to
support fish? Between Greenland and Iceland
In a tropical swamp Between Hawaii and Guam
Near the equator Mosquitos cannot live in the tundra because of Oh, but the tundra has swarms of mosquitos!
the lack of rainfall.
cold winters. not enough blood to suck. Most of the Earth’s total primary production of organic chemicals occurs in the
grasslan
ds.
deserts.
rain
forests.
oceans. Nitrogen fixation
causes nitrogen to stick to surfaces.
adds neutrons to nitrogen atoms.
combines gaseous nitrogen with hydrogen and oxygen.
repairs broken nitrogen atoms.
is a psychological problem for nitrogenous
groupies. Over the oceans
there is more rain than evaporation.
there is the same amount rain and
evaporation.
there is more evaporation than rain. Plant litter, dead animals, and animal waste is called
pathogenic
detritus
abiotic
reservoir
biotic
reservoir Silent spring was a very important book alerting the public to terrible effects of the overuse
of pesticides like DDT which was killing not only insects but was killing off birds and was
appearing in human breast milk. It was written by
Rachael Carson.
Rosalind
Franklin.
Beatrice Potter.
Barbara
McClintock.
Madame Curé. Some poison flowers produce a substance to protect themselves from Heliconius caterpillars.
What is that substance?
sugar
strychni
ne
mescali
ne
nicotine
morphi
ne Species diversity is greatest when
relative abundance of species is
greatest.
relative abundance of species is
least.
relative abundance of species is
equal. Species whose main defense is a noxious taste or a painful sting tend to be
large.
camouflag
ed.
colorful.
hidden. Stable ecosystems
often depend on continuous local
disturbances.
cannot stand any disturbances. contain many horses.
can survive the loss of a keystone
species. The Hubbard Brook Experiment demonstrated that acid rain removed what from the soil? It
had to be added back to allow plant growth.
nitrogen
potassiu
m
phosphor
ous
calcium The Sahara desert is getting bigger because of All of these choices are correct.
more people being at its edge.
None of these choices is correct.
dry-land farming.
overgrazing. The activities of people have caused and are causing
All of the above choices are
correct.
chemical pollution of water, soil,
and air.
massive soil erosion.
changes in local and global
climates.
None of the above choices is
correct. The amount of solar energy converted to organic compounds is called realized radiant
potential.
insolation.
primary production.
radiant potential. The breakdown of organic material into inorganic material is called
detritus
feeding.
digestion.
composting.
decompositi
on. The dominant plant-eating animals in the savanna are
horses.
zebra.
cattle.
kangaro
os.
buffalo.
giraffe.
antelop
e.
insects. The extensive grassland with scattered trees is a/an chaparral.
tundra.
savanna.
taiga. The floor of a tropical rain forest is typically dark with nutrient-rich soil.
light with nutrient-poor soil.
dark with nutrient-poor soil.
light with nutrient-rich soil.

 

 

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