Which of the following phenomena might have influenced the evolution of organisms?1. Continental drift2. Glacial cyclesSelect the correct answer using the code given below.
✓ Correct answer: c) Both 1 and 2
ExplanationStatement 1 is correct: Continental drift is the gradu- al movement of Earth’s continents due to tectonic plate activity.It causes geographical isolation, leading to divergent evolution and speciation.Species adapt to new environments, creating dis- tinct biogeographical patterns like the unique primates in Aus- tralia and South America.This process has shaped evolutionary changes over time.Statement 2 is correct: Periodic advances and retreats of ice sheets, impacting climate and sea levels.It creates environmen- tal pressures, pushing species to adapt.Glacial cycles result in population bottlenecks, migration, or extinction and influences evolutionary paths.The Pleistocene glaciations played a crucial role in shaping the distribution and diversity of many species ob- served today 98
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