O-LevelBiologyEcology & Environment5090/11 · Oct/Nov 2025 · Q21 Mark

The international system for naming organisms is the binomial system. Which two parts form the scientific name?

Akingdom and genus

Bgenus and species

Cspecies and variety

Dvariety and kingdom

✓ Correct answer

B: genus and species

Oracle Prep sorts past-paper questions by topic, so you can drill Ecology & Environment and see which topics are most likely to come up next.

Topic: Ecology & Environment, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, Oct/Nov 2025 Paper 1 Variant 1, question 2.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content

Why is it important to control the amount of nitrate fertiliser used on farm land?

On decomposition, which substance in decaying plants is the major source of carbon for carbon dioxide production by t…

Three statements about malarial parasites are listed. 1 Insecticides are used to kill the vectors. 2 Netting is used …

Where does the placenta allow the exchange of materials to take place between mother and fetus?

The genotype for the height of an organism is written as Tt. What conclusion may be drawn?

In a large family, half the children were blood group A and half were blood group B. If the father was blood group O…