Question

In winter season, cambium is ______ active and produces _____ wood.

• A. Less, early
• B. Less, late
• C. More, early
• D. More, less

Answer 1

The correct option is B Less, late

Cambium activity is influenced by the climatic changes.The cambium is more active during the spring that forms plenty of xylem vessels with wider cavities also called as early wood. In winter this activity slows down and gives rise to narrower xylem elements. This is the late wood or autumn wood.

In autumn and winter, the cambium produces late wood. In this season, the cambium is less active and form fewer xylem elements with narrow vessels, it is called autumn wood or late wood.

So, the correct answer is "option C"