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 growth of mucor on a piece of bread is?
scavenging
commensalism
autotrophism
saprophytism
Correct answer is D
Bread mold is saprophytic, as are most types of fungi.
An organism that is saprophytic is one that feeds off of dead or decaying.
An ecological instrument used to measure wind direction is?
Secchi disc
wind vane
anemometer
slope gauge
Correct answer is B
Wind direction is usually measured using a wind vane.
HbA HbA
HbC HbH
HbM HbF
HbS HbS
Correct answer is A
AS and AS should not marry, there is every chance of having a child with SS. AS and SS
AA marries an AS. You'll end up with kids with AA and AS which is good.
The genes crossing over occurs during?
fertilization
mutation
mitosis
meiosis
Correct answer is D
Specifically, meiosis creates new combinations of genetic material in each of the four daughter cells.
These new combinations result from the exchange of DNA between paired chromosomes. Such exchange means that the gametes produced through meiosis exhibit an amazing range of genetic variation.
Tall trees with buttress roots and evergreen leaves are characteristics features of?
temperate grassland
Southern Guinea Savanna
tropical rain forests
Northern Guinea savanna
Correct answer is C
Rainforest trees are quite different from trees of temperate forests. In the rainforest, trees grow to gigantic size, supported by strong, strut-like buttresses at the base of the trunk that help to stabilize them in shallow forest soils. Huge creepers twine themselves around the trunks of trees.