Only vascular plants have true roots, stems, and leaves.
a. true
b. false

A. True  

Explanation:

In the plant kingdom the plants are divided into non-vascular plants and vascular plants. Non-vascular plants are those that do not have sap-conducting vessels, and vascular plants are plants that have sap-conducting vessels. Also, only vascular plants have true roots, stem and leaves. Non-vascular plants present kauloid, which resembles the stem of vascular plants; phylloids, which resemble leaves; and rhizoids that have the same function as the roots of vascular plants, fix the plant in the soil.

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