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 statements about the dentition of man is INCORRECT ? man has
More molars than incisors
No diastema
The same number of teeth on upper and lower jaw
A total of thirty-two teeth
A total of six molars
Correct answer is B
- Diastema refers to a gap or space between the teeth. These spaces can form anywhere in the mouth, but are sometimes noticeable between the two upper front teeth. This condition affects both adults and children. In children, gaps may disappear once their permanent teeth grow in.
The crown of the mammalian tooth is covered with
cement
dentine
caries
enamel
Correct answer is D
No explanation has been provided for this answer.
‘Jointed skeleton’ is absent in the
Cockroach
Spider
Millipede
Snail
Dragon fly
Correct answer is D
No explanation has been provided for this answer.
The element common to protein, carbohydrate, and lipid is
hydrogen
sulphur
nitrogen
phosphorus
Correct answer is A
No explanation has been provided for this answer.
Which of the following statements about the rate of transpiration is INCORRECT? It is
Dependent on temperature
Affected by changes in light intensity
Unaffected by humidity
Dependent on air movement
Affected by availability of water
Correct answer is C
No explanation has been provided for this answer.