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 groups of organisms feeds directly on green plants?
Producer
Decomposer
Primary consumer
Secondary consumer
Tertiary consumer
Correct answer is C
No explanation has been provided for this answer.
biotic factors
climatic factors
physiographic factors
edaphic factors
abiotic factors
Correct answer is A
No explanation has been provided for this answer.
Pests can be controlled without the subsequent danger of polluting the ecosystem by
introducing a population of species similar to that of the pest
increasing the population of the natural enemies of the pest
eliminating the natural enemies of the pest
keeping the population of natural enemies of the pest constant
spraying the ecosystem with pesticide
Correct answer is B
No explanation has been provided for this answer.
The use of herbicides and pesticides in farms can cause pollution
Bush-burning encourages desertification
Excessive use of fertilizers in farms may have harmful effects
Tillage of tropical soils with ploughs and harrows may encourage erosion
Monocropping is one of the cultural methods of controlling pests
Correct answer is E
No explanation has been provided for this answer.
Which of the following characteristics is associated with commensalism?
Both organisms are harmful to each other
The association involves many organisms
The association is beneficial to one of the organisms
Both species are beneficial to each other
This relationship is found only among higher plants
Correct answer is C
No explanation has been provided for this answer.