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.
Stomatal pores open when there is
an increase in the sugar content of guard cells
a decrease in the osmotic concentration of the guard cell
a decrease in the sugar content of mesophyll cells
an increase in the sugar content of mesophyll cells
Correct answer is A
No explanation has been provided for this answer.
Anaerobic respiration differs from aerobic respiration by the production of
less energy and water
greater energy and alcohol
less energy and alcohol
greater energy and water
Correct answer is C
No explanation has been provided for this answer.
The element that is essential for the coagulation of blood is
potassium
calcium
phosphorus
iron
Correct answer is B
No explanation has been provided for this answer.
Water oozing out of plant leaves in a humid environment is a phenomenon known as
transpiration
osmosis
pinocytosis
guttation
Correct answer is D
No explanation has been provided for this answer.
protein
starch
fat
mineral salt
Correct answer is C
No explanation has been provided for this answer.