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.
In a food chain, each succeeding level in a forward direction represents
an increase in the number of individuals
a decrease in the number of individuals
an increase in the biomass of individuals
a gain in the total energy being transferred
Correct answer is B
A food chain describes how energy and nutrients move through an ecosystem. At the basic level, there are plants that produce the energy, then it moves up to higher-level organisms like herbivores. After that, when carnivores eat the herbivores, energy is transferred from one to the other.
Which of the following is an adaptation of tropical rainforest species?
Few stomata
Thick bark
Buttress roots
Reduced leaves
Correct answer is C
No explanation has been provided for this answer.
Which of the following are adaptations of animals to aquatic habitats?
Gills, streamlined bodies, and lateral lines
Lateral line, streamlined bodies, and lungs
Gills, scaly skin, and lungs
Gills, streamlined bodies, and spiracles
Correct answer is A
No explanation has been provided for this answer.
Which of the following growth activities in plants is brought about by gibberellins?
Rapid cell division
Tropic response
Cell elongation
Main cell elongation
Correct answer is C
No explanation has been provided for this answer.
II and III
I and III
I and IV
I and II
Correct answer is B
No explanation has been provided for this answer.