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.
Yam is used in this set-up because it
is a permeable to the salt solution
is a plant material
acts as a storage organ
acts as a semi-permeable membrane
Correct answer is D
No explanation has been provided for this answer.
Predators are beneficial in pest control because they
are natural enemies of small mammals
devour farm animals
feed on crop pests
prey on game animals
compete for food with the pests
Correct answer is C
No explanation has been provided for this answer.
Succession is best described as
a process whereby organisms systematically colonize a barren habitat until a stable community is formed
a process whereby plants occupy a barren habitat until a suitable habitat is formed
a process whereby animals occupy a barren habitat until a suitable habitat is formed
the subsequent taking over of the land through emigration or seeds dispersal
the replacement of weaker plants and animals by stronger ones
Correct answer is A
No explanation has been provided for this answer.
Which of the following may not contribute to environmental pollution?
Solar energy radiation
Industrial waste
Waste disposal
Smoke
Nuclear power plant
Correct answer is A
No explanation has been provided for this answer.
which of the following is used to test for the presence of lime in a soil sample?
H2SO4(aq)
NaOH(aq)
HCl(aq)
HNO3(aq)
Correct answer is C
No explanation has been provided for this answer.