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 division is NOT part of the atmosphere?
hydrosphere
mesosphere
stratosphere
thermosphere
troposphere
Correct answer is A
part of the atmosphere includes: the troposphere, stratosphere, mesosphere and thermosphere
What is NOT characteristic of fresh water habitats?
high osmotic concentration
low oxygen concentration
they are flooded during the rainy season
temperature changes daily
they have limited size-and depth
Correct answer is A
No explanation has been provided for this answer.
In genetics, test cross is used to
confirm the number of offspring in F1
confirm the number of gametes present in parents
test for heterozygosity
test for X and Y chromosomes
test for the phenotypic ratio
Correct answer is C
No explanation has been provided for this answer.
A pair of genes which controls a trait is described as
allele
dominant
hybrid
recessive
variant
Correct answer is A
Alleles are pairs or series of genes on a chromosome that determine the hereditary characteristics.
Ant
Bee
Butterfly
Termite
Wolf
Correct answer is C
Social insects work together to find food and other resources and to communicate their findings to others in the community. They are capable of providing defense to their home and resources when under attack. Social insects also can displace other insects, and even larger animals, for territory and food.
-Social insects are the ants, bees, wasps, and termites that have organized societies.
-Butterflies are mostly solitary creatures, though some species migrate in massive numbers.
-Wolves are very social animals. They live and hunt together in groups called packs. A wolf pack is really just another name for a family of wolves