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.
Which of the following actions does not occur during exhalation in man?
Thoracic cavity decreases in volume
Diaphragm flattens
Ribs move down and in
Air pressure increases in the thoracic cavity
Correct answer is B
When you inhale, your diaphragm tightens and moves downward (flattens).
The diagram above illustrates the transverse section of a
dicotyledonous root
monocotyledonous root
dicotyledonous stem
monocotyledonous stem
Correct answer is C
The diagram shows the transverse section of a dicotyledonous stem showing its tissue distribution.
Which of these is NOT a pollutant?
Carbondioxide
Lead oxide
Nitrogen gas
Nitrogen oxide
Sulphur dioxide
Correct answer is C
No explanation has been provided for this answer.
I
II
III
IV
Correct answer is C
The triceps are large muscles on the back of the upper limb of many vertebrates. The part III is a part of the bone that forms the triceps.
Which of these organisms reproduces by budding?
Amoeba
Euglena
Hydra
Paramecium
Volvox
Correct answer is C
No explanation has been provided for this answer.