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.
sweat glands
sebaceous glands
fatty cells
granular layer
Correct answer is B
The normal function of sebaceous glands is to produce and secrete sebum, a group of complex oils including triglycerides and fatty acid breakdown products, wax esters, squalene, cholesterol esters and cholesterol. Sebum lubricates the skin to protect against friction and makes it more impervious to moisture.
The sheet of muscle that separates the thoracic and the abdominal cavities is the
diaphragm
intercostal muscle
pleural memberane
pericardium
Correct answer is A
No explanation has been provided for this answer.
Yeast respires anaerobically to convert simple sugar to carbon (IV) oxide and
alcohol
acid
oxygen
water
Correct answer is A
No explanation has been provided for this answer.
Which of the following structures are visible in the cell of a plant during mitosis?
Centrioles, chromatids and nucleolus
Homologous chromosomes, nuclear membrane and spindle fibres
cell wall, centrioles and chromatids
Chromosomes, nuclear membrane and centromere
Correct answer is B
No explanation has been provided for this answer.
The structure that will be stained blue-black by iodine is labelled
I
II
III
IV
V
Correct answer is A
No explanation has been provided for this answer.