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 statements is incorrect about diffusion?
It involves degradation of soluble particles in solvents
it occurs mainly in gaseous and liquid media
No membrane is needed to effect the movement of molecules
Molecules move from region of lower concentration to that of higher concentration
Correct answer is D
No explanation has been provided for this answer.
The presence of a large number of mitochondria in a cell indicates that
it has little cytoplasmic content
the cell is very active
the cell is dormant
the respiration is poor
Correct answer is B
No explanation has been provided for this answer.
The plant cell mostly stores food as
glycogen
auxins
homtones
starch
Correct answer is D
No explanation has been provided for this answer.
mitochondria
gene
ribosome
lysosome
Correct answer is B
No explanation has been provided for this answer.
A community is best described as
living things in a habitat interacting with the non-living part of the environment
the total number of individuals of one species of organisms living in a particular habitat
populations of different species living together and interacting with each other in one habitat
the individuals of a particular group living together in an area and sharing the same resources
Correct answer is C
No explanation has been provided for this answer.