Waec Model Questions Vol1 2025 Biology Question 18

Practice objective / multiple choice question 18 from the 2025 Waec Model Questions Vol1 Biology examination.

Waec Model Questions Vol1 2025 Biology Objective / Multiple Choice Hard Difficulty
Question 18 WAEC_MODEL_QUESTIONS_VOL1 • 2025 • BIOLOGY • objective

A newly isolated microorganism displays the following characteristics: (i) prokaryotic cell organization with no membrane‑bound nucleus, (ii) cell wall composed of peptidoglycan, (iii) reproduces by binary fission, (iv) contains internal thylakoid‑like membranes that house photosynthetic pigments, and (v) thrives in highly saline environments. Classify this organism by stating its Domain, Kingdom (or equivalent high‑level taxon), and Phylum. Justify each taxonomic rank based on the given traits.

Answer Options

A. Domain: Archaea; Kingdom: Archaea; Phylum: Halobacteria
B. Domain: Bacteria; Kingdom: Bacteria (Monera); Phylum: Firmicutes
Correct Answer C. Domain: Bacteria; Kingdom: Bacteria (Monera); Phylum: Cyanobacteria
D. Domain: Bacteria; Kingdom: Bacteria (Monera); Phylum: Proteobacteria
Correct Answer
C
Correct Option:
Domain: Bacteria; Kingdom: Bacteria (Monera); Phylum: Cyanobacteria

About This Question

This is Waec Model Questions Vol1 2025 Biology Question 18. It is one of the objective questions from the 2025 Waec Model Questions Vol1 Biology examination.

Difficulty level: Hard .

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