NECO 2003 Biology · Question 33
The following are major groups of the plant kingdom EXCEPT
Options
- A.Bryophyta
- B.Chiorophyta
- C.Pteridophyta
- D.Spermatophyta
- E.Thallophyta
Answer: B. Chiorophyta
Explanation written with AI and checked against the answer key
Analyze the question: We are asked to find the one option that is NOT a major group of the plant kingdom.
Concept: In the classical Nigerian secondary school syllabus, the plant kingdom is divided into these major groups:
- Thallophyta: algae and fungi (simple plants with no true root, stem or leaf)
- Bryophyta: mosses and liverworts
- Pteridophyta: ferns
- Spermatophyta: seed-bearing plants (gymnosperms and angiosperms)
Checking each option:
- A. Bryophyta is a major plant group.
- B. "Chiorophyta" is presumably a misprint of Chlorophyta, the green algae. It is a division within the algae, which fall under Thallophyta. It is not one of the main classical groups of the plant kingdom, and the question's spelling of it is also not standard.
- C. Pteridophyta is a major plant group.
- D. Spermatophyta is a major plant group.
- E. Thallophyta is a major plant group in the classical classification.
**Working vs. Option B is the odd one out, since Chlorophyta is a subgroup of the algae (inside Thallophyta) rather than a major group on its own.
Answer: B
Tip: Remember the four classical plant groups with the phrase "T-B-P-S": Thallophyta, Bryophyta, Pteridophyta, Spermatophyta. Anything else that looks like a plant group, such as Chlorophyta (green algae), is usually a subgroup and is likely the "EXCEPT" answer.
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