Practice question
Question
Xylem is primarily composed of:
Explanation
The right choice is B: Dead cells. In BASICS of PLANT, that matches how the process or concept actually works — the other choices mix up related ideas or use the wrong mechanism. Skip these: A) Living cells; C) Meristematic cells; D) Secretory cells. A quick check: if an option needs energy, pumps, or the opposite direction of movement, ask whether that really applies.