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 organ through which the embryo receives food, water and oxygen is labelled
III
IV
II
I
Correct answer is C
No explanation has been provided for this answer.
rainfall
temperature
soil pH
light penetration
tidal movements
Correct answer is C
No explanation has been provided for this answer.
Which of the following conditions is not necessary for photosynthesis to occur in plants?
There must be light
There must be xylem tissue used to conduct water
There must be chlorophyll to trap radiant energy
Carbondioxide must be present
Water must be present
Correct answer is B
No explanation has been provided for this answer.
Which of these processes removes carbon from the atmosphere?
Animal putrefaction
Burning fuels
Photosynthesis
Volcanic eruption
Respiration in plants
Correct answer is C
During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil.
At the end of photosynthesis, the green leaf is tested for starch and not glucose because
the glucose is used up immediately to provide energy for the needs of the leaf
the glucose formed is immediately converted to starch
starch is stored only in leaves
there are no chemicals for glucose test in leaves
it is easy to test for starch
Correct answer is B
No explanation has been provided for this answer.