PPSC PCS 2025 · Question 90 of 100

Consider the following statements: Statement I: According to Bergmann's Rule, birds and mammals in colder regions tend to be significantly larger in body size than their conspecifics inhabiting warmer regions. Statement II: A smaller surface area-to-volume ratio enables them to lose less heat to their environment compared to smaller animals, which have a larger surface area-tovolume ratio. Which of the following is correct in respect of the above statements?

Environment

1. ABoth Statement I and Statement II are correct and Statement II is the correct explanation for Statement I.Correct
2. BBoth Statement I and Statement II are correct, 4but Statement II is not the correct explanation for Statement I.
3. CStatement I is correct, but Statement II is incorrect.
4. DStatement I is incorrect, but Statement II is correct.