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.
In cold conditions the mammalian body reacts in the following ways except
shivering of the body
dilation of the capillaries supplying blood to the skin
constriction of blood capillaries in the skin
increased rate of chaemical changes in the body
Correct answer is B
No explanation has been provided for this answer.
Which organ removes the largest quantity of water from the blood?
lung
intestine
kidney
skin
Correct answer is C
No explanation has been provided for this answer.
Lamarck's evolution theory could be summarised by the statement that
only the fittest can survive in a challenging environment
species that are unable to adapt become extinct
new characteristics do not arise in organisms in time of need
the changing environment imposes structural physiological and behavioural changes in organisms
in a changing and unstable environment nature rejects the weak
Correct answer is D
No explanation has been provided for this answer.
The swarming especially at the beginning of the rainy season is a courtship behaviour shown by
migratory birds
pigeons
crickets
winged termites
bees
Correct answer is D
No explanation has been provided for this answer.
The changing of colour by a chameleon to that of the environment is an example of
adaptive radiation
protective coloration
courtship display
display of body colour
territorial behaviour
Correct answer is B
No explanation has been provided for this answer.