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.
Fruit enlargement can be induced by spraying young ovary with
cytokinin, abscisic acid, and ethylene
gibberellin, ethylene, and abscisic acid
auxin, abscisic acid, and ethylene
auxin, cytokinin, and gibberellin
Correct answer is D
No explanation has been provided for this answer.
Treatment of a poor soil with lime supplies
Sulphur
Calcium
Phosphorus
Sodium
Nitrogen
Correct answer is B
Treating the soil with lime is to improve the calcium content of the soil. It provides a source of calcium and magnesium for plants.
anabolism
catabolism
growth
development
Correct answer is C
No explanation has been provided for this answer.
Exponential increase in the population of an organism is a characteristic feature of
binary fission
sexual reproduction
budding
vegetative propagation
Correct answer is A
No explanation has been provided for this answer.
A corn differs from a bulb in that
its stem is the main food storage organ
it has a flattened disc-shaped stem
buds are absent in the axils of the leaves
adventitious roots are present
Correct answer is A
No explanation has been provided for this answer.