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.
A marine protozoan is likely to have no contractile vacuole mainly because the cytoplasm is
isotonic to sea water
hypotonic to sea water
hypertonic to sea water
impervious to sea water
Correct answer is A
No explanation has been provided for this answer.
The association between bacteria residing in the rumen of the ruminant is?
parasitism
predation
saprophytism
mutualism
Correct answer is D
Bacteria in the rumen of ruminants, in algae, and in fungi mostly exist within a mutual relationship.
The most important ecological factor in a terrestrial environment is?
rainfall
humidity
wind
soil
Correct answer is D
The land surface and the soil are the main factors.
In a bean seed, absorption of water at the beginning of germination is through the?
hilum
micropyle
testa
plumule
Correct answer is B
The micropyle helps to absorb water at the time of the seed's germination.
The reproductive system of a male mammal is made of
claspers, prostrate, gland, sperm duct, and vas deferens
testis, prostrate gland, sperm duct, and penis
oviduct, urethra, testis, and sperm duct
testis, uterus, prostrate gland, and sperm duct
Correct answer is B
Male reproductive structures are: the penis, scrotum and testicles, vas deferens, prostate, and urethra.
The male reproductive system is responsible for sexual function, as well as urination.