
Concept explainers

Answer to Problem 1TQ
Organisms transforms and adapt to a new life style will led to formation of new species by speciation process.
Therefore, option (a) is correct.
Explanation of Solution
Justify reasons for the correct statement:
Speciation is the case when a group of organisms forms a new species and higher taxonomic groups. The term speciation was coined by Orator F.Cook. They expand their ecological roles. It is a simple process through which a group of organism evolves and becomes a distinct species.
Option (a) is given as “speciation.”
Hence, option (a) is correct.
Justify reasons for the incorrect statements:
Option (b) is given as “mass extinction.”
Mass extinction is a process of complete destruction of a population either naturally or artificially. Mass extinction will not result in speciation. Hence, it is a wrong answer.
Option (c) is given as “evolution”.
Evolution is a natural process of organism gradually transforms, taking place in a species that leads to their development and not a new species formation. Hence, it is a wrong answer.
Option (d) is given as “adaptive radiation”.
Adaptive radiation deals with the diversification of an ancestral species into multiple new forms. Adaptive radiation will not form new species and higher taxonomic groups. Hence, it is a wrong answer.
Hence, options (b), (c) and (d) are incorrect.
Speciation is a process of population transforms to different species with morphological and changes like adaptation.
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Chapter 14 Solutions
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