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.
Use the following processes to answer this question.
I-Ribs move upward and outward
II- Diaphragm relaxes
IIl-Volume of thorax increases
IV-Air is forced out of the lungs
which of the following processes is a direct result of contraction of the intercostal muscles?
I
II
III
IV
Correct answer is B
No explanation has been provided for this answer.
Use the following processes to answer this question.
I-Ribs move upward and outward
II- Diaphragm relaxes
IIl-Volume of thorax increases
IV-Air is forced out of the lungs
Which of the processes take place during inspiration?
I and III only
II and III only
II and III only
III and IV only
Correct answer is A
No explanation has been provided for this answer.
Which of the following blood components has the greatest affinity for oxygen and carbon (IV) oxide?
Lymphocyte
Thrombocyte
Erythrocyte
Blood plasma
Correct answer is B
No explanation has been provided for this answer.
fish and human
toad and rat
toad and fish
humans and rat
Correct answer is D
No explanation has been provided for this answer.
The region of a plant stem in which cells divide to increase its diameter is
cambium
phloem
xylem
collenchyma
Correct answer is A
No explanation has been provided for this answer.