Diversification in plant life appeared due to long periods of evolutionary changes. Earlier, the plants were thalloid and there were no differentiation among root, stem and leaves. Vascular tissues were absent as in alglae and bryophytes. In pteridophytes, seed habit was observed for the first time. Gymnosperm consists of vascular tissue and naked seed habitat. Angiosperms showed secondary growth, along with fruit formation.
Diversification in plant life appeared:
NEET UG 2004 — Zoology Evolution
2004mcqmedium
Diversification in plant life appeared:
Official previous-year question
Held on 30 Apr 2004 · Verified 9 Jul 2026.
Options
- A
due to long periods of evolutionary changes
- B
due to abrupt mutations
- C
suddenly on earth
- D
by seed dispersal.
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