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.
How many gametes are produced in the pollen grain of a flowering plant before fertilization?
one
two
three
four
Correct answer is B
No explanation has been provided for this answer.
The diagram below is an illustration of a type of eye defect in humans. Study it and answer this question.
The eye defect can be corrected by the use of
convex lens
concave lens
bifocal lens
cylindrical lens
Correct answer is B
Nearsightedness (myopia) is corrected with lenses called “minus power lenses.”
They are concave-shaped and help the eyes focus light properly. Myopia causes a person to see distant objects as blurry.
The diagram below is an illustration of a type of eye defect in humans. Study it and answer this question.
The eye defect illustrated in the diagram is
hypermetropia
astigmatism
presbyopia
myopia
Correct answer is D
Myopia occurs when the shape of your eye causes light rays to bend (refract) incorrectly, focusing images in front of your retina instead of on your retina.
The temperature control centre in mammals is located in the?
skin
hypothalamus
pituitary gland
adrenal gland
Correct answer is B
No explanation has been provided for this answer.
Which of the following hormones is suddenly secreted into the bloodstream of a frightened person?
insulin
adrenaline
thyroxine
parathormore
Correct answer is B
No explanation has been provided for this answer.