Transcript The animation for multiple choice questions may not work on some computers.
Slide 1
The animation for multiple choice questions may
not work on some computers.
Slide 2
During photosynthesis, plants convert
atmospheric carbon into proteins.
Slide 3
Ecosystem pollution can result from both
natural events and human actions.
Slide 4
Which of the follow are reactants
in a photosynthesis reaction?
Oxygen and glucose
Carbon dioxide and glucose
Carbon dioxide and water
Oxygen and water
None of the above
Slide 5
Which of the following types of
biological molecules include the
“blueprint” for life?
Nucleic acids
Amino acids
Carbohydrates
Lipids
Phospholipids
Slide 6
What process directly converts
atmospheric nitrogen, N2, into a form
plants can use?
Sedimentation
Denitrification
Nitrification
Eutrophication
Nitrogen fixation
Slide 7
A pollutant with which of the following
characteristics would most likely
bioaccumulate in a primary consumer?
not taken up by plants
degrades slowly in the environment
easily broken down in the body
fatal in very low concentrations
None of the above
Slide 8
What is one way that human
agriculture affects ecosystems?
enhancement of natural stream flow patterns
decreased production of pollutants
increased growth of trees
depletion of soil nutrients
None of the above
Slide 9
Organisms that are low in marine food chains, such as plankton
and shrimp, generally contain very low levels of mercury.
Organisms that are higher in the food chains, such as tuna fish
and sharks, generally have much higher levels of mercury in
their bodies. Which of the following processes best explains this
observation?
biomagnification
natural selection
biodegradation
pollutant cycling
succession
Slide 10
Which of the following processes
reduces the availability of phosphorus
for living things?
production of fertilizer
burial of marine skeletons
weathering of rock
agricultural runoff
decomposition of dead organisms
Slide 11
Which of the following processes
removes carbon from the atmosphere?
Photosynthesis in ocean plankton
Cutting down trees
Burning fossil fuels
Decomposition of dead organisms
Cellular respiration in muscle cells
Slide 12
Which of the following elements is
required for the formation of nucleic
acids and proteins, but not sugars?
Carbon
Nitrogen
Oxygen
Hydrogen
None of the above
Slide 13
Which of the following is an inorganic
compound that is part of the nitrogen
cycle?
glucose
water
ammonia
methane
None of the above
Slide 14
How do consumers get the nitrogen
their bodies need?
consumers do not nitrogen
by breathing the nitrogen in the air
through symbiosis with nitrogen-fixing bacteria
through the uptake of nitrogen-containing fertilizers
by eating other organisms
Slide 15
Living organisms need ____________ because
it makes up part of the backbone of DNA
molecules and is an important part of cell
membranes.
phosphorus
nitrogen
oxygen
sulfur
molybdenum
Slide 16
Which of the following elements is
found in all biological molecules?
phosphorus
carbon
nitrogen
sulfur
plutonium
Slide 17
Which of the following processes best explains
why an adult fish has a DDT concentration of
2.07 ppm while an osprey has a DDT
concentration of 13.80 ppm?
bioremediation
biomagnification
biodegradation
bioaccumulation
None of the above
Slide 18
How is the phosphate made available to plants
and animals on Earth?
Lightning converts phosphorus into phosphate.
Plants release phosphorus during photosynthesis.
Bacteria convert phosphorus into phosphate.
Weathering releases phosphate into the soil.
None of the above
Slide 19
A farmer decides to grow peas and soybeans.
He plants these two crops in all of his fields.
What impact would this have on the nutrients
in the soil?
There would be an increase in the amount of phosphate (PO43−).
There would be an increase in the amount of carbon dioxide (CO2)
There would be an increase in the amount of ammonium
(NH4+).
There would be a decrease in the amount of nitrate (NO3−).
None of the above
Slide 20
Which organism in the
picture on the left would
have the highest
concentration of PCBs?
The Killer Whale
Slide 21
What do the following processes have in common?
- Volcanic Activity
- Decomposition
- Cellular Respiration
They are all part of the nitrogen cycle.
They help reduce greenhouse gases.
They increase the PO4 in the soil.
They all release CO2 into the atmosphere.
None of the above
Slide 22
Your classmate tells you that all forest fires
are bad. Which of the following observations
could you use to challenge your classmate’s
assumption?
Forest fires recycle nutrients and create more diversity in the forest.
Forest fires destroy bird nests and animal habitats.
Forest fires release carbon dioxide into the environment.
Forest fires threaten human settlements.
None of the above.
The animation for multiple choice questions may
not work on some computers.
Slide 2
During photosynthesis, plants convert
atmospheric carbon into proteins.
Slide 3
Ecosystem pollution can result from both
natural events and human actions.
Slide 4
Which of the follow are reactants
in a photosynthesis reaction?
Oxygen and glucose
Carbon dioxide and glucose
Carbon dioxide and water
Oxygen and water
None of the above
Slide 5
Which of the following types of
biological molecules include the
“blueprint” for life?
Nucleic acids
Amino acids
Carbohydrates
Lipids
Phospholipids
Slide 6
What process directly converts
atmospheric nitrogen, N2, into a form
plants can use?
Sedimentation
Denitrification
Nitrification
Eutrophication
Nitrogen fixation
Slide 7
A pollutant with which of the following
characteristics would most likely
bioaccumulate in a primary consumer?
not taken up by plants
degrades slowly in the environment
easily broken down in the body
fatal in very low concentrations
None of the above
Slide 8
What is one way that human
agriculture affects ecosystems?
enhancement of natural stream flow patterns
decreased production of pollutants
increased growth of trees
depletion of soil nutrients
None of the above
Slide 9
Organisms that are low in marine food chains, such as plankton
and shrimp, generally contain very low levels of mercury.
Organisms that are higher in the food chains, such as tuna fish
and sharks, generally have much higher levels of mercury in
their bodies. Which of the following processes best explains this
observation?
biomagnification
natural selection
biodegradation
pollutant cycling
succession
Slide 10
Which of the following processes
reduces the availability of phosphorus
for living things?
production of fertilizer
burial of marine skeletons
weathering of rock
agricultural runoff
decomposition of dead organisms
Slide 11
Which of the following processes
removes carbon from the atmosphere?
Photosynthesis in ocean plankton
Cutting down trees
Burning fossil fuels
Decomposition of dead organisms
Cellular respiration in muscle cells
Slide 12
Which of the following elements is
required for the formation of nucleic
acids and proteins, but not sugars?
Carbon
Nitrogen
Oxygen
Hydrogen
None of the above
Slide 13
Which of the following is an inorganic
compound that is part of the nitrogen
cycle?
glucose
water
ammonia
methane
None of the above
Slide 14
How do consumers get the nitrogen
their bodies need?
consumers do not nitrogen
by breathing the nitrogen in the air
through symbiosis with nitrogen-fixing bacteria
through the uptake of nitrogen-containing fertilizers
by eating other organisms
Slide 15
Living organisms need ____________ because
it makes up part of the backbone of DNA
molecules and is an important part of cell
membranes.
phosphorus
nitrogen
oxygen
sulfur
molybdenum
Slide 16
Which of the following elements is
found in all biological molecules?
phosphorus
carbon
nitrogen
sulfur
plutonium
Slide 17
Which of the following processes best explains
why an adult fish has a DDT concentration of
2.07 ppm while an osprey has a DDT
concentration of 13.80 ppm?
bioremediation
biomagnification
biodegradation
bioaccumulation
None of the above
Slide 18
How is the phosphate made available to plants
and animals on Earth?
Lightning converts phosphorus into phosphate.
Plants release phosphorus during photosynthesis.
Bacteria convert phosphorus into phosphate.
Weathering releases phosphate into the soil.
None of the above
Slide 19
A farmer decides to grow peas and soybeans.
He plants these two crops in all of his fields.
What impact would this have on the nutrients
in the soil?
There would be an increase in the amount of phosphate (PO43−).
There would be an increase in the amount of carbon dioxide (CO2)
There would be an increase in the amount of ammonium
(NH4+).
There would be a decrease in the amount of nitrate (NO3−).
None of the above
Slide 20
Which organism in the
picture on the left would
have the highest
concentration of PCBs?
The Killer Whale
Slide 21
What do the following processes have in common?
- Volcanic Activity
- Decomposition
- Cellular Respiration
They are all part of the nitrogen cycle.
They help reduce greenhouse gases.
They increase the PO4 in the soil.
They all release CO2 into the atmosphere.
None of the above
Slide 22
Your classmate tells you that all forest fires
are bad. Which of the following observations
could you use to challenge your classmate’s
assumption?
Forest fires recycle nutrients and create more diversity in the forest.
Forest fires destroy bird nests and animal habitats.
Forest fires release carbon dioxide into the environment.
Forest fires threaten human settlements.
None of the above.