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NECO Likely 2027 — Biology questions

50 likely Biology questions for the 2027 NECO examination, written from the official syllabus and recurring past-question patterns, each with the correct answer and a short explanation. The first 6 are free to read — full access (₦2,990 once) unlocks all 50.

1. Which organelle is the major site of aerobic respiration in a living cell?

Cell Structure and Functions

2. Equal-sized strips of fresh yam are placed in distilled water and concentrated salt solution respectively. The strip in distilled water becomes firm because

Movement of Substances Across Cell Membranes

3. Which feature distinguishes insects from arachnids?

Classification of Living Organisms

4. Which sequence correctly shows increasing levels of organisation in a multicellular animal?

Levels of Organisation

5. A destarched potted plant is enclosed in a transparent airtight container with potassium hydroxide and exposed to sunlight. If other conditions are suitable, its leaves will fail to form starch because potassium hydroxide

Photosynthesis and Experimental Biology

6. A maize plant grown in a nutrient solution lacking nitrogen is most likely to show

Mineral Nutrition in Plants

These are AI predictions for revision, not leaked or official exam questions.