WASSCE Biology · Paper 1 style

Diseases

One sample question with the full working. 1 more in the app, with instant feedback and repair sessions for the traps below.

The vector of malaria is the

Ahousefly
Bfemale Anopheles mosquito
Ctsetse fly
DPlasmodium

Show the answer and working

Answer: B

Malaria vector: female Anopheles.

Trap A Transfers a feature to the wrong organism group: Keep a feature grid: rows = groups (bacteria, fungi, mosses, ferns, conifers, flowering plants, insects, fish, mammals), columns = wall, nucleus, gas exchange, reproduction. Check the option against the right row.

Trap C Disease and vector misconceptions: Malaria: Plasmodium, vector female Anopheles. Sleeping sickness: Trypanosoma, tsetse fly. Bilharzia: Schistosoma, water snail. Tuberculosis: bacterium, droplets. Control: break the vector's life cycle, vaccination, sanitation.

Trap D Confuses vector and causative organism: The PATHOGEN causes disease (Plasmodium); the VECTOR carries it (female Anopheles). Control can target either.

Traps in Diseases

Transfers a feature to the wrong organism group
Keep a feature grid: rows = groups (bacteria, fungi, mosses, ferns, conifers, flowering plants, insects, fish, mammals), columns = wall, nucleus, gas exchange, reproduction. Check the option against the right row.
Disease and vector misconceptions
Malaria: Plasmodium, vector female Anopheles. Sleeping sickness: Trypanosoma, tsetse fly. Bilharzia: Schistosoma, water snail. Tuberculosis: bacterium, droplets. Control: break the vector's life cycle, vaccination, sanitation.
Confuses vector and causative organism
The PATHOGEN causes disease (Plasmodium); the VECTOR carries it (female Anopheles). Control can target either.

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