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Question

Which of the following phenomena might have influenced the evolution of organisms?
1. Continental drift
2. Glacial cycles

Select the correct answer using the code given below.
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2

Answer:

C

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Explanation:

Continental drift, which involves the movement of Earth's continents over millions of years, has had a significant impact on the distribution of species and the formation of biogeographic regions. It has influenced the evolution of organisms by creating or altering barriers to gene flow, leading to speciation and the development of distinct species.

Glacial cycles, characterized by periods of ice ages and interglacial periods, have also played a role in shaping the evolution of organisms. They have caused fluctuations in climate and habitat availability, leading to adaptations and changes in species' distributions. Organisms have had to adapt to survive in colder environments during ice ages and expand their ranges during interglacial periods.

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