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.
Farmers practise crop rotation because it
helps to prevent soil erosion
allows two crops to be planted at the same time
helps to conserve soil fertility
is an alternate to shifting cultivation
Correct answer is C
Crop rotation is a practice used to maintain nutrients in an agricultural soil.
Most irrigated lands often become unproductive in later years because of
loss of fertility
increase in salinity
soil erosion
loss of water
Correct answer is C
Disadvantages of irrigation:
- Excess water in the soil leads to waterlogging
40.0g per 100 g dry soil
4.4g per 100g dry soil
4.0 g per 100g dry soil
0.4g per 100g dry soil
Correct answer is C
No explanation has been provided for this answer.
Which of the following is a dangerous product of coal burning?
Sulphur dioxide
Carbon dioxide
Carbon
Nitrogen
Correct answer is A
No explanation has been provided for this answer.
In man, spermatozoa are never found in the?
testis
urethra
epididymis
prostrate glands
vas deferens
Correct answer is D
- The prostate gland is located just below the bladder in men and surrounds the top portion of the tube that drains urine from the bladder (urethra). The prostate's primary function is to produce the fluid that nourishes and transports sperm (seminal fluid).