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.
Free nitrogen is released to the atmosphere by
Nitrogen-fixing bacteria
nitrifying bacteria
denitrifying bacteria
saprophytic bacteria
Correct answer is C
No explanation has been provided for this answer.
What do bacteria in root nodules derive from the host plant?
Protection and minerals
Water and minerals
Carbonhydrates and water
Protection and carbohydrates
Correct answer is A
No explanation has been provided for this answer.
An acidic soil can be improved upon by
sedimentation
leaching
flocculation
watering
Correct answer is C
No explanation has been provided for this answer.
Which of the following constitute pollution?
Droppings from birds
loud disco sound
A pack of cigarettes
Refuse in an incinerator
Correct answer is B
No explanation has been provided for this answer.
What set of diseases is spread mainly by insect vectors?
Cholera, tenia, and ghonorrhoea
Poliomyelitis, tuberculosis, and syphilis
Cholera, malaria, and tuberculosis
Malaria, cholera, and river blindness
Correct answer is D
No explanation has been provided for this answer.