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 woman is incapable of producing male children
The man’s sperms are very weak
The man is not athletic enough
The Y component of the men’s sex chromosomes was always involved
The X component of the man’s sex chromosomes was always involved
Correct answer is E
No explanation has been provided for this answer.
Mineral salts can be absorbed into the roots by
osmosis only
osmosis and diffusion
diffusion and active transport
imbibition only
Correct answer is C
No explanation has been provided for this answer.
All short
Three short and one tall
Two short and two tall
One short and three tall
All tall
Correct answer is E
In complete dominance, the dominant allele(TT) completely covers up the recessive one(gg). The recessive allele isn't expressed at all in their physical appearance.
Which of these food chains is NOT possible in a forest?
Diatom → fly → toad → snake
Fly → toad → snake→ hawk
Leaves → antelope → man → lion
Leaves → caterpillar → bird → lion
Leaves →goat → man→ lion
Correct answer is A
Diatoms are an important source of these energy rich molecules that are food for the entire food web, from zooplankton to aquatic insects to fish to whales.
Which of the following phyla have members with both internal and external segmentation?
Platyhelminthes
Nematoda
Annelida
Mollusca
Correct answer is C
No explanation has been provided for this answer.