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.
The order of primary succession by plants in a very dry habitat is?
xerophytes → mesophytes → shrub
mesophytes → xerophytes → shrub
mesophytes → shrub -> xerophytes
xerophytes → shrub → mesophytes
Correct answer is C
No explanation has been provided for this answer.
The effect of chlorofluorocarbon is
reducing oxygen concentration in the atmosphere
depleting the ozone layer
screening ultra violet rays
increase in carbon dioxide concentration
Correct answer is B
No explanation has been provided for this answer.
The major pollutant around airport residential areas is
oil spillage
soot
noise
dust
Correct answer is C
No explanation has been provided for this answer.
Which of these values in kj/m² likely represents the energy content of the producers in a habitat?
5033
100
12
10
Correct answer is A
No explanation has been provided for this answer.
The amount of energy passed from one trophic level to the next decreases because
many organisms are present at the first trophic level
many organisms occur at the higher trophic level
more energy is conserved at lower trophic levels
parts of the organisms remain unutilized at each trophic level
Correct answer is D
No explanation has been provided for this answer.