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.
If a farmer left his land uncultivated for five years before returning to it, he must be practising
modern agriculture
strip cropping
contour ridging
crop rotation
the bush fallow system
Correct answer is E
No explanation has been provided for this answer.
In the enzyme (amlyase) reactions of starch → sugar
starch is referred to as the
substrate
product
enzyme
enzyme-substrate complex
reaction mixture
Correct answer is A
No explanation has been provided for this answer.
ONE of the major causes of haemophilia is lack of
firbrinogen
amylase
white blood corpuscles
red blood corpuscles
plasma
Correct answer is A
No explanation has been provided for this answer.
In man, identical twins occur when
An ovum is fertilized by a sperm and then divide into two, each forming a separate embryo
an ovum fertilized by two sperms and then divides into two, each forming an embryo
two ova are fertilized at the same tine each forming an embryo
two ova are fertilized by a single sperm each forming an embryo after fertilization
one ovum first divides into two and each half is fertilized by a sperm before developing into an embryo
Correct answer is A
No explanation has been provided for this answer.
A physiological adaptation of plants to the problem of excessive water loss is
reduction in the number of stomata
reversal of the normal stomatal rythm
possession of shallow roots
possession of waxy cuticle
Correct answer is B
No explanation has been provided for this answer.