Multiple choice

Which of the following tissues cause(s) the thickening of the stem, branches and roots?

  1. Cambium

  2. Phellogen

  3. Both (1) and (2)

  4. Periderm

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Both cambium and phellogen cause thickening of the stem, branches and roots by their activities.