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.
Which of the following activities promotes forest conservation?
Lumbering
Using firewood to cook
Afforestation
Producing paper
Correct answer is C
No explanation has been provided for this answer.
Which of the following practices improves crop yield in clayey soil? Addition of
more water and humus
lime and humus
fertilizers
weedicides and fertilizers
Correct answer is B
No explanation has been provided for this answer.
Leguminous crops are incorporated into crop rotation in order to
improve aeration of the soil
promote nitrogen fixation
increase the rate of soil formation
improve upon the water holding capacity of the soil
Correct answer is B
No explanation has been provided for this answer.
aiding red blood cells to carry more oxygen
production of antibodies that destroy germ toxins
arresting excessive bleeding
production of white blood cells which engulf and digest bacteria
Correct answer is B
No explanation has been provided for this answer.
Which of the following methods does not make water fit for drinking?
Addition of chlorine
Boiling
Distillation
Addition of alum
Correct answer is C
Chlorine is one of the most commonly used for water disinfection. Adding chlorine helps kill certain bacteria and other microbes in tap water.