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 is likely to occur in a deciduous forest during the dry season?
New leaves are formed
The trees die off
The undergrowth increases
The ground becomes bare
Correct answer is A
Trees in tropical deciduous forests lose their leaves in the dry season and regrow them in the rainy season. In temperate deciduous forests, trees lose their leaves in the fall and regrow them in the spring.
A food web is more stable than a food chain because
it contains more organisms
it has greater energy source
it is not easy to destroy
every organism has an alternative source
Correct answer is D
No explanation has been provided for this answer.
Organisms in an ecosystem are usually grouped according to their trophic level as
carnivores and epiphytes
consumers and parasites
producers and consumers
producers and saprophytes
Correct answer is C
No explanation has been provided for this answer.
The parts used by the tapeworm to fasten itself to the host’s intestine are the
Neck and suckers
Hooks and suckers
Rostellum and suckers
Young proglottis and neck
Rostellum, hooks and suckers
Correct answer is B
No explanation has been provided for this answer.
The most important factors that influence an organism's way of life in its habitat are
the physicals and biotic environment
Food and water availability
temperature, water, light and predator-prey relationship
competition for food and spaces
Correct answer is C
No explanation has been provided for this answer.