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.
Adrenalin is considered as a hormone for “fright and flight” because it
controls the fluid content of the body
is used in protein metabolism
plays a role in the pH balance of the body fluids
prepares the body for action
Correct answer is D
No explanation has been provided for this answer.
Filtration
Diffusion
Osmosis
Reabsorption
Correct answer is A
No explanation has been provided for this answer.
The oxygen released during photosynthesis is obtained
from the catalytic splitting of carbon-dioxide in plant tissues
from the breakdown of glucose molecules in cells
during the photolysis of water using energy trapped in chlorophyll
by the excretion of excess oxygen in plant tissues
Correct answer is C
No explanation has been provided for this answer.
Which of the following does not occur during inhalation in mammals?
Rib cage is raised up
Diaphragm contracts and becomes dome shaped
Inter-coastal muscle contracts
Volume of the thoracic cavity increases
Correct answer is B
No explanation has been provided for this answer.
Which of the following is used to measure the rate of water uptake in plants?
Potometer
Hydrometer
Hygrometer
aspirator
Correct answer is A
No explanation has been provided for this answer.