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 mineral nutrient that is most bound to the soil is
phosphorus
calcium
iron
potassium
Correct answer is C
No explanation has been provided for this answer.
A plant which has a horizontal underground stem is
rhizome
corm
creeper
tuber
bulb
Correct answer is A
No explanation has been provided for this answer.
It is black
it can supply usable nutrients to plants
the oxygen content is very high
artificial manure is added to it
it is not waterlogged
Correct answer is B
No explanation has been provided for this answer.
Which of the following causes pollution?
Consumption of canned drink
The addition of fertilizer to farmland
Respiration of living organism
Burning of refuse
Correct answer is D
No explanation has been provided for this answer.
Growing yam tendrils climb for support. This growth response is
haptotropism
geotropism
phototropism
hydrotropism
chemotropism
Correct answer is A
- Haptotropism / thigmotropism is the movement or change in orientation of a plant's growth as a reaction to touch. The orienting factor is generally a hard surface that can change the direction of the plant's growth or the growth of one of its organs.
- The movement of parts of a plant (especially tendrils) in response to a touch stimulus.