How well do you understand living things and their vital processes? Whether you are preparing for JAMB, WAEC, NECO and Post-UTME, these Biology past questions and answers cover such subjects as the chemistry of life, botany, evolution, genetics, ecology etc to help you know what to expect, improve your speed and confidence and be really prepared for the actual aptitude test.
The origin of mineral particles in the soil is
humus
water
micro-organisms
weathered rock
organic matter
Correct answer is E
No explanation has been provided for this answer.
Water retention is highest in soils which are rich in
sand, poor in humus and devoid of clay
clay and sand, but poor in humus
clay and humus, but poor in sand
clay, poor in humus and devoid of sand
sand and humus, but poor in clay
Correct answer is C
Clay Soil can hold more total water than most other soil types.
Soil erosion CANNOT be controlled by
planting cover crops
contouring of sloping ground
terracing of slopes
laying of mulch
burning of bush
Correct answer is E
No explanation has been provided for this answer.
Tsetse fly is harmful to man because it is associated with the spread of
river blindness
malaria
sleeping sickness
leprosy
dysentry
Correct answer is C
No explanation has been provided for this answer.
Which of the following is NOT caused by bacteria?
Cholera
Gonorrhoea
Tuberculosis
Onchoceriasis
Typhoid
Correct answer is D
Onchocerciasis is another name for river blindness. It is caused by the NEMATODE, Onchocerca volvulus.