Assertion (A): The number of pink pages in the Red Data Book is increasing.
Reason (R): More species are being classified as Critically Endangered.
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Which of the following species is categorized as Critically Endangered?
What does the presence of Indicator species in an ecosystem indicate?
Arrange the following IUCN categories in the order of increasing risk of extinction:
Which category in the Red Data Book indicates species that were once endangered but have now recovered?
A keystone species is essential in an ecosystem because:
Which of the following is NOT a criterion for classifying a species as Vulnerable?
What does a taxon labeled as 'Data Deficient' in the IUCN Red List indicate?
Which of the following is an example of a foundation species?
What is the primary function of keystone species in an ecosystem?
Which IUCN category applies to a species with a probability of extinction in the wild of at least 20% within 20 years?
The Red Data Book's use of 'Red' symbolically represents:
Assertion (A): The number of green pages in the Red Data Book is relatively low.
Reason (R): Green pages indicate species that have moved out of the endangered category due to successful conservation efforts.
A species categorized as 'Data Deficient' by the IUCN:
Which of the following is true about a taxon labeled as 'Not Evaluated'?
What does the increasing number of pink pages in the Red Data Book signify?
The primary role of foundation species in an ecosystem is to:
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553 videos|1115 docs|418 tests
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