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.
The activity of ptyalin is likely to decrease with an increase in the concentration of
oxygen
starch
protein
acid
Correct answer is D
No explanation has been provided for this answer.
bacteria
fungi
viruses
protozoa
Correct answer is C
No explanation has been provided for this answer.
What is the term used to describe biotic and abiotic factors in the environment of the organism?
habitat
biome
ecosystem
ecological niche
Correct answer is C
An ecosystem consists of all the biotic and abiotic factors that influence that community.
The ability of chameleon to change its colour rapidly is an adaptation for
obtaining food
attraction mate
communication
escaping detection
Correct answer is D
No explanation has been provided for this answer.
Which of the following can cause shrinkage of living cells?
Deionized water
Hypotonic solution
Isotonic solution
Hypertonic solution
Correct answer is D
No explanation has been provided for this answer.