What significant environmental change allowed life to move onto dry land?
Understand the Problem
The question is asking about the significant environmental change that enabled life to transition from water to land, suggesting that one of the given options is a key factor in this evolutionary process.
Answer
A significant rise in atmospheric oxygen levels allowed life to move onto dry land.
The significant environmental change that allowed life to move onto dry land was the rise in atmospheric oxygen levels, facilitating the evolution of lungs and other adaptations for terrestrial living.
Answer for screen readers
The significant environmental change that allowed life to move onto dry land was the rise in atmospheric oxygen levels, facilitating the evolution of lungs and other adaptations for terrestrial living.
More Information
The transition from water to land was an important evolutionary milestone. Higher oxygen levels in the atmosphere allowed for the evolution of more efficient respiratory structures, such as lungs, that enabled life to thrive on land.
Tips
A common mistake is to overlook oxygen's role in this process, focusing instead on physical adaptations without considering environmental factors.
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