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.
Atmospheric nitrogen is converted to soil nitrogen for plant use by
nitrification and combustion
putrefaction and lightning
lightning and nitrification
combustion and putrefaction
Correct answer is C
No explanation has been provided for this answer.
An ecological succession often leads to
an increase in species diversity
decrease in species diversity
an unstable community
the dispersal of species
Correct answer is A
No explanation has been provided for this answer.
r = p + q
r > p + q
q = r - p
r < p + q
Correct answer is D
No explanation has been provided for this answer.
Serum differs from blood plasma because
contains blood cells and fibrinogen
contains soluble food and mineral salt
lacks the blood protein and fibrinogen
lacks blood cells and albumin
Correct answer is C
No explanation has been provided for this answer.
The chamber of the mammalian heart with the thickest wall is the
right ventricle
left auricle
right auricle
left ventricle
Correct answer is D
No explanation has been provided for this answer.