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.
In which of the following organic compounds is the hydrogen-oxygen ratio equal to 2:1?
Proteins
Carbohydrates
Lipids
Vitamins
Correct answer is B
No explanation has been provided for this answer.
shade the eggs from the direct rays of the sun
protect the eggs from predators
protect the eggs from being washed away by rain drops
camouflage the eggs
Correct answer is D
No explanation has been provided for this answer.
Transportation of water in the xylem tissue involves the following except
root pressure
capillary action
transpiration pull
translocation
Correct answer is D
No explanation has been provided for this answer.
Which of the following statements ls true about transpiration? It is the
loss of water in the form of vapour from the surface of the leaf
loss of water in the form of vapour from the surface of the root
absorption of water in the form of vapour from the body of the pint
movement of water through the body of the plant
Correct answer is A
No explanation has been provided for this answer.
Which of the following statements about the development of the foetus is not correct?
The circulatory system of the foetus is directly connected to the maternal blood vessels
The foetus depends on the mothers blood for its food and oxygen
The foetus is surrounded by a water sac
Food and oxygen are carried across the placenta to the embryo’s blood
Correct answer is A
No explanation has been provided for this answer.