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.
F1 flies all short-winged and F2 flies all normal-winged
F1 flies all normal and F2 flies all short-winged
F1 flies all short-winged and three-quarters of F2 flies are short-winged
F1 flies all normal-winged and three-quarters of F2 flies are normal-winged
Correct answer is D
No explanation has been provided for this answer.
Dead plants and animals are decomposed by bacteria and fungi into
nitrate
nitrites
amino acids
ammonium
Correct answer is D
When a plant or animal dies or an animal expels waste, the initial form of nitrogen is organic. Bacteria or fungi convert the organic nitrogen within the remains back into ammonium \(NH^{+}_{4}\), a process called ammonification.
The part of the brain that controls heart beat and breathing is the
olfactory lobe
cerebellum
cerebral hemisphere
medulla oblongata
Correct answer is D
No explanation has been provided for this answer.
When a short-sighted person views a distant object without spectacles, the image is formed
on the retina
in front of the retina
behind the retina
on the blind spot
Correct answer is B
The light rays focus just in front of the retina, resulting in distant objects appearing blurred.
The fleshy base of a flower to which the different floral parts are attached is known as
calyx
sepals
Receptacle
hypothalamus
Correct answer is C
No explanation has been provided for this answer.