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 determines a normal male offspring?
X
Y
XX
XY
YY
Correct answer is D
No explanation has been provided for this answer.
The use of moist skin for respiration in amphibians is known as
cellular respiration
cutaneous respiration
buccal respiration
pulmonary respiration
Correct answer is B
No explanation has been provided for this answer.
The stomata of leaves are similar in function to the
pharynx of humans
scales of fish
spiracle of insects
trachea of toads
Correct answer is C
No explanation has been provided for this answer.
In vascular plants, the sieve tubes and companion cells are present in the
cambium
cortex
xylem
phloem
Correct answer is D
No explanation has been provided for this answer.
What is the theoretical probability that a normal male child will be born?
1\2
1\4
1\3
1
2/3
Correct answer is A
No explanation has been provided for this answer.