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 the nitrogen cycle, the nitrates in the soil are converted to atmospheric nitrogen by
puterfying bacteria
nitrogen-fixing bacteria
nitrifying bacteria
denitrifying bacteria
Correct answer is D
No explanation has been provided for this answer.
The adaptive importance of the nuptial flight from termite colonies is to
ensure cross-breeding between members of one colony and another
disperse the reproductives in order to establish new colonies
provide abundant food for birds and other animals during the early rains
expel the reproductives so as to provide enough food for other members
Correct answer is B
No explanation has been provided for this answer.
Which of the following waste products in plants is excreted through the stomata and lenticles?
carbon dioxide
alkaloids
tannins
anthocyanins
Correct answer is A
The waste products of a plant are carbon dioxide, water vapour, and oxygen.
monocoty ledons and dicotyledons
tracheophytes and ferns
angiosperms and gymnosperms
thallophytes and bryophytes
Correct answer is C
No explanation has been provided for this answer.
osmosis
plasmolysis
turgidity
haemolysis
Correct answer is D
Your body normally destroys old or faulty red blood cells in the spleen or other parts of your body through a process called haemolysis.