Ecological Indicators Quiz

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Questions and Answers

What are ecological indicators?

Plants or animals that indicate environmental conditions (correct)
Temperature and humidity levels
Physical features of the landscape
Chemicals found in the environment

What are 'sentinels' in the context of ecological indicators?

Sensitive organisms introduced as early warning devices (correct)
Physical barriers to protect an environment
Environmental monitoring stations
Chemical substances used to detect pollution

What is the role of 'bioassay organisms' as ecological indicators?

Organisms that accumulate pollutants
Used as laboratory agents to detect pollutants (correct)
Animals that exploit environmental resources
Plants used for landscaping purposes

How do 'exploiters' function as ecological indicators?

Species that exploit environmental resources (A) Signup and view all the answers

What is the purpose of 'detectors' as ecological indicators?

To detect the presence of pollutants (C) Signup and view all the answers

What are some examples of ecological indicators and their classifications according to use?

Examples of ecological indicators include sentinels, bioassay organisms, exploiters, accumulators, and detectors. They are classified according to use as early warning devices, laboratory agents for detecting pollutants, species whose presence signals environmental conditions, organisms that accumulate pollutants, and sensitive organisms used to detect pollution, respectively. Signup and view all the answers

What is the role of 'sentinels' as ecological indicators?

Sentinels are sensitive organisms introduced into the environment as early warning devices, such as canaries in coal mines, or to delimit the effect of an effluent, signaling potential environmental issues. Signup and view all the answers

How are 'bioassay organisms' used as ecological indicators?

Bioassay organisms are selected organisms used as laboratory agents to detect the presence and/or concentration of pollutants, or to rank pollutants in order of toxicity. Signup and view all the answers

What is the function of 'exploiters' as ecological indicators?

Exploiters are species whose presence indicates specific environmental conditions, serving as indicators of the state of an ecosystem. Signup and view all the answers