Question

Ancestors of seed-bearing plants exhibit:

• A. vascular bundles
• B. seed habit
• C. heterospory
• D. heterotrichous

Answer 1

The correct option is C heterospory

Vascular bundles consist of xylem and phloem which are the conducting tissues present in pteridophytes (non-seed bearing), gymnosperms and angiosperms.

Development of seed habit evolved in gymnosperms and angiosperms.

Heterospory is the formation of two types of spores - the microspore and the megaspore. The seed bearing plants exhibit heterospory.

Heterotrichous condition is seen in algae where the plant body show both erect and prostrate forms of filament.