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 is the underlying Principle in the adoption of biological pest control?
The farmer's knowledge of agricultural practices
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 ecological communities
Correct answer is E
No explanation has been provided for this answer.
Which of the following substances cannot control the growth of harmful microorganisms?
Antibiotics
Hypertonic salt solution
Disinfectants
isotonic sugar solution
Antiseptics
Correct answer is D
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 birth rate
Correct answer is D
No explanation has been provided for this answer.
A climax community is characterized by
a stable composition of plant and animal species
rapid changes in the composition of species
constant changes in appearance of the habitat
different species occurring at different times
gradual change in animal population
Correct answer is A
No explanation has been provided for this answer.
Which of the following is not an adaptation of plants or animals to desert environments?
Well developed tap root system
Small leaves with thick Epidermis
Stems with spike-like leaves
uric acid as metabolic waste in some animals
Broad leaves for storage
Correct answer is E
No explanation has been provided for this answer.