Q. With reference to Cicadas, consider the following statements:
1.They act as an indicator of a healthy ecosystem.
2.They are known for their loud, complex and species-specific acoustic signals or songs.
Which of the statements given above is/are correct? 
Answer: C
Notes:
- Cicadas are hemipteran insects.They are known for their loud, complex and species-specific acoustic signals or songs.
- Habitat: Most cicadas are canopy dwellers and are found in natural forests with large trees.They act as indicators of a healthy forest ecosystem. They occur more in areas around undisturbed bamboo groves.
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