Question

The plants having vascular tissue but lacking seeds are placed under
A. Algae
B. Bryophytes
C. Pteridophytes
D. Gymnosperms

Answer 1

The xylem and phloem, which are plants' major transport systems, make up vascular tissue. They are found in vascular bundles in all plant organs, passing via roots, stems, and leaves. The xylem is in charge of transporting water and dissolved ions from the roots to the top of the plant.
Blood vessels such as veins, arteries, and capillaries are absent in avascular tissues, whereas they are present in vascular tissues. Muscle tissue, for example, is vascular, or vascularized. This structure must be avascular since blood vessels would obstruct eyesight. Another example of avascular tissue is cartilage.

Complete answer:
Option A: No algae have or require vascular tissue because the entire body or entire cell of the body is in contact with/submerged in water, hence they do not require vascular tissue.
So option A is not correct.
Option B: Mosses and liverworts are classified as bryophytes, which are plants that lack genuine vascular tissues but share a number of other fundamental characteristics. They don't have genuine stems, roots, or leaves, but they do have cells that execute these roles in general. Bryophyte sporophytes do not exist in a free-living state.
So option B is not correct.
Option C: Pteridophyta is a mature plant with well-developed vascular tissues that can thrive on land. They do not have seeds, however, and reproduce by spores.
So option C is correct.
Option D: Gymnosperms have two conducting tissues, the xylem and phloem, as vascular plants. The xylem is a tube that distributes water and minerals from the roots to the rest of the plant while also acting as a structural support system. Many gymnosperm seeds are carried in cones and are not visible until they reach maturity.
So option D is not correct.

So option C is the correct answer.

Note:
Pteridophytes are the simplest vascular plants, with no flowers or seeds and a simple reproductive mechanism. Pteridophytes evolved a xylem and phloem system to transfer fluids, allowing them to reach greater heights than their avascular forebears.
A pteridophyte is a vascular plant that disperses spores and has xylem and phloem. Pteridophytes are frequently referred to as "cryptogams," meaning that their mechanisms of reproduction are hidden, because they do not produce blooms or seeds.