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.
One of the functions of the xylem is
strengthening the stem
manufacturing food
reducing loss of water
conducting manufactured food
Correct answer is A
Vascular tissue is comprised of the xylem and the phloem, the main transport systems of plants.
The xylem is the plant vascular tissue that conveys water and dissolved minerals from the roots to the rest of the plant and also provides physical support.
Which of the following statements best explains the reason why termites swarm at night?
Light is not necessary for swarming
They avoid day-flying birds
Light destroys their wings
They can only see in the dark
Correct answer is D
No explanation has been provided for this answer.
Who proposed the theory of evolution by natural selection?
Darwin
Lamark
Aristotle
Linnaeus
Correct answer is A
No explanation has been provided for this answer.
Replication of DNA molecules is catalysed by an enzyme called
polymerase
ptyalin
pepsin
amylase
Correct answer is A
No explanation has been provided for this answer.
The diagram below is an illustrating of a cross between plants ! and B of the same species. Study it to answer the question below.
The process that gave rise to the F1 generation is
self fertilization
cross fertilization
out-breeding
test cross
Correct answer is B
No explanation has been provided for this answer.