Moderate
Functions of bark are:
Correct answer: C. Both (a) & (b)
- A. As a protective material against extreme conditions of temperature
- B. If the temperature is very light or very cold whatever the case may be
- C. Both (a) & (b)
- D. None of these
Explanation
Bark insulates the stem against temperature extremes, protecting living tissues from both excessive heat and severe cold. Option (b) appears to contain a wording error, but it clearly intends the same high-versus-low temperature function as (a).
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