[Campbell Biology P.823] According to the text, which of the following accurately describes ... | Practice Question

According to the text, which of the following accurately describes "bark" in plant biology?

  • A: Only the cork layer.
  • B: All tissues external to the vascular cambium, including secondary phloem and all periderm layers.
  • C: Only the secondary phloem.
  • D: Only the outermost protective layer of the stem.

Explanation

The text explicitly states: "In plant biology, bark includes all tissues external to the vascular cambium. Its main components are the secondary phloem produced by the vascular cambium and, external to that, the most recent periderm and all the older layers of periderm see Figure 35.22 ."