Concept explainers
Introduction:
Biological diversity, biodiversity, is the variations in different species and the ecosystems in which these species survive. Biodiversity is studied in three stages, species diversity, genetic diversity, and ecosystem diversity.
Answer to Problem 1TY
Option (d), a species that is in danger of becoming extinct throughout all or a significant portion of its range.
Explanation of Solution
Explanation/justification for the correct answer:
Option (d), a species that is in danger of becoming extinct throughout all or a significant portion of its range. Endangered species are those species that are on the verge of extinction throughout the world. Hence, this option is correct.
Explanation/justification for the incorrect answer:
Option (a), a species that is likely to become extinct in a portion of its range. Endangered species are not the ones whose population is decreasing in the given range but in the whole world. Hence, this option is incorrect.
Option (b), a species that has disappeared in a particular community but is present in other natural environments. Endangered species are not the ones whose population is decreasing in the given range but in the whole world. Hence, this option is incorrect.
Option (c), a species that is extinct. Extinct species are those species whose even one organism is not present on this planet to continue life. While endangered species are those with a limited population. Hence, this option is incorrect.
Option (e) is both b and d. Among the given options, option d is correct. Hence, this option is incorrect.
Among the answers given, a correct answer is an option (d), a species that is in danger of becoming extinct throughout all or a significant portion of its range.
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Chapter 47 Solutions
EBK PRINCIPLES OF BIOLOGY
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