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.
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.
Answer:
(c)
Core Books/NCERT
Statement 1 is correct: Continental drift altered the position of landmasses, changed climates, and geographically isolated species. This isolation led to speciation and evolutionary diversification (Marsupials in Australia after Gondwana split). Statement 2 is correct: Glacial cycles (ice ages and interglacial periods) caused drastic climatic shifts, sea-level changes, and migration pressures. These cycles influenced adaptations, extinctions, and new evolutionary pathways. Additional information. Modern climate change is sometimes called the “Sixth Mass Extinction driver” – showing that, like glacial cycles in the past, human-induced warming may reshape evolution today.