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.
| Maize cob | White | Pink | Red |
| I | 30 | 60 | 30 |
| II | 50 | 99 | 49 |
Which of the following ratios agrees with the result?
9:3:3
1:2:1
1:3:1
2:1:1
2:3:2
Correct answer is B
No explanation has been provided for this answer.
Which of the following is the underling principle in the adoption of biological control of pests?
Knowledge of agricultural practices by the farmer
relationship between plants and animals
the presence of poisonous chemicals in the farm
the relative population of plants and animals in the farm
The predator-prey relationship in the ecological community
Correct answer is E
No explanation has been provided for this answer.
Which of the following substances cannot control the growth of harmful microoganisms?
Antibiotics
Hypertonic salt solution
disinfectants
isotonic sugar solution
Antiseptics
Correct answer is D
No explanation has been provided for this answer.
The use of predators or parasites to control pests in the farm is known as
predator control
chemical control
biological control
animal control
parasitic control
Correct answer is C
No explanation has been provided for this answer.
Which of the following is not a characteristic of overcrowding in plant and animal communities?
Population outstripping available space
Population exceeding available food
Competition within the population
increase in primary production
population increasing at the same rate as the bith rate
Correct answer is D
No explanation has been provided for this answer.