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Which statement best explains the purpose of the microorganisms in this aquarium?
Microorganisms recycle nutrients that support the ecosystem.
predator/prey
outcompeted the original algae populations for abiotic factors
owls
evidence about past environments and the history of life
the use of new technology requires decisions based on an assessment of costs, benefits, and risks
reducing the use of chemicals on farm fields and golf courses
Human activities can have negative effects on a species.
A group of organisms from the food web that would be found at level X of the energy pyramid is the
Microorganisms recycle nutrients that support the ecosystem.
predator/prey
outcompeted the original algae populations for abiotic factors
owls
evidence about past environments and the history of life
the use of new technology requires decisions based on an assessment of costs, benefits, and risks
reducing the use of chemicals on farm fields and golf courses
Human activities can have negative effects on a species.
Which statement regarding this finding is supported by the study?
Microorganisms recycle nutrients that support the ecosystem.
predator/prey
outcompeted the original algae populations for abiotic factors
owls
evidence about past environments and the history of life
the use of new technology requires decisions based on an assessment of costs, benefits, and risks
reducing the use of chemicals on farm fields and golf courses
Human activities can have negative effects on a species.
Which human activity would most likely result in a decrease in the size and number of dead zones?
Microorganisms recycle nutrients that support the ecosystem.
predator/prey
outcompeted the original algae populations for abiotic factors
owls
evidence about past environments and the history of life
the use of new technology requires decisions based on an assessment of costs, benefits, and risks
reducing the use of chemicals on farm fields and golf courses
Human activities can have negative effects on a species.
A new species of floating photosynthetic algae was accidently introduced into a pond ecosystem. It gradually replaced all the original algal species. A possible reason for the replacement could be that the new species
Microorganisms recycle nutrients that support the ecosystem.
predator/prey
outcompeted the original algae populations for abiotic factors
owls
evidence about past environments and the history of life
the use of new technology requires decisions based on an assessment of costs, benefits, and risks
reducing the use of chemicals on farm fields and golf courses
Human activities can have negative effects on a species.
The relationship between fire ants and groundnesting birds is an example of
Microorganisms recycle nutrients that support the ecosystem.
predator/prey
outcompeted the original algae populations for abiotic factors
owls
evidence about past environments and the history of life
the use of new technology requires decisions based on an assessment of costs, benefits, and risks
reducing the use of chemicals on farm fields and golf courses
Human activities can have negative effects on a species.
The arguments made by both sides provide evidence that
Microorganisms recycle nutrients that support the ecosystem.
predator/prey
outcompeted the original algae populations for abiotic factors
owls
evidence about past environments and the history of life
the use of new technology requires decisions based on an assessment of costs, benefits, and risks
reducing the use of chemicals on farm fields and golf courses
Human activities can have negative effects on a species.
Information that scientists are able to obtain from the fossil record includes
Microorganisms recycle nutrients that support the ecosystem.
predator/prey
outcompeted the original algae populations for abiotic factors
owls
evidence about past environments and the history of life
the use of new technology requires decisions based on an assessment of costs, benefits, and risks
reducing the use of chemicals on farm fields and golf courses
Human activities can have negative effects on a species.
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