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.
reducing sugar
fatty acid
sucrose
amino acid
Correct answer is A
During a water bath, which is usually 4–10 minutes, the solution of the mixture and Benedict's solution should progress in the colors of blue (with no reducing sugar present), orange, yellow, green, red, and then brick red precipitate or brown (with high reducing sugar present). A color change would signify the presence of a reducing sugar.
i, ii, and iii only
ii and iii only
i and ii only
i and iii only
Correct answer is D
No explanation has been provided for this answer.
Adaptive radiation is illustrated in
modified insect mouthparts
dentition in mammals
wings in birds and bats
appendages in insects
Correct answer is A
No explanation has been provided for this answer.
The vector for yellow fever is
Aedes mosquito
Anopheles mosquito
tsetse fly
blackfly
Correct answer is A
No explanation has been provided for this answer.
The average number of individuals of a species per unit area of the habitat is the
population density
population frequency
population size
population distribution
Correct answer is A
No explanation has been provided for this answer.