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.
The structure labelled I represented the
phloem
xylem
cortex
pericycle
Correct answer is D
No explanation has been provided for this answer.
The function of the absorption is performed by the structure labelled
I
II
III
IV
Correct answer is B
No explanation has been provided for this answer.
Genetic counselling is important when a marriage is planned between a
Rh- woman and Rh man+
Rh- woman and Rh- man
Rh+ woman and Rh+ man
Rh+ woman and Rh- man
Correct answer is A
Most people — about 85% — are Rh positive. But if a woman who is Rh negative and a man who is Rh positive conceive a baby, there is the potential for a baby to have a health problem. The baby growing inside the Rh-negative mother may have Rh-positive blood, inherited from the father. Approximately half of the children born to an Rh-negative mother and Rh-positive father will be Rh positive.
In the experimental set-up, the rubber sheet represents the organ called
pleural cavity
lungs
diaphragm
intercostal muscles
Correct answer is C
No explanation has been provided for this answer.
The aim of the experiment is to demonstrate
that in mammal gaseous exchange takes place in the lungs
the part played by the pleural cavity and diaphragm in respiration
that a large amount of oxygen is absorbed by the lungs
the presence of carbon (IV) oxide in the exhaled air
Correct answer is B
No explanation has been provided for this answer.