Indicator Species
Biology ⇒ Ecology and Environment
Indicator Species starts at 9 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Indicator Species.
How you perform is determined by your score and the time you take.
When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 10
A scientist observes a sudden decline in frog populations in a wetland. What could this indicate about the wetland's environmental health?
Describe how indicator species can be used in conservation efforts.
Describe how indicator species can be used to monitor the effects of acid rain.
Describe how the presence of indicator species can help in detecting invasive species.
Describe one limitation of using indicator species to assess environmental health.
Describe one way in which indicator species can help scientists monitor climate change.
Explain how the use of indicator species can benefit human health.
Explain why frogs are considered good indicator species for environmental health.
Explain why it is important to understand the biology of an indicator species before using it for environmental monitoring.
Explain why lichens are considered good indicator species for air pollution.
Explain why the absence of an indicator species does not always mean the environment is unhealthy.
Name one aquatic and one terrestrial indicator species.
What is an indicator species?
A national park is considering reintroducing a locally extinct indicator species to monitor ecosystem recovery. Discuss one potential risk and one potential benefit of this approach.
A river ecosystem is being monitored for pollution. Scientists notice that the population of mayfly larvae has decreased significantly, while the population of tubifex worms has increased. Explain what this change in indicator species populations suggests about the water quality and why.
Explain how the concept of bioaccumulation in indicator species can be used to assess the presence of toxic substances in an ecosystem.
