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.
An association between bacteria and root nodules of legumes is called
Commensalism
mutualism
parasitism
saprophytism
Correct answer is B
Mutualism is an association between two organisms that benefit each other.
Which of the following is NOT a waste product of plants?
Tannins
Oxygen
Carbondioxide
Sap
Correct answer is D
Plants need to excrete excess carbon dioxide and oxygen. Carbon dioxide is a waste product of aerobic respiration in plant cells. Oxygen is a waste product of photosynthesis. Also, Extracts from plants contains toxic alkaloids.
Which of the following statements is not true of a fish?
respires using gills
covered with scales
they are homeothermic
they are poikilothermic
Correct answer is C
No explanation has been provided for this answer.
Hormones that help regulate blood calcium levels are produced by the
Adrenal
thyroid
pancreas
parathyroid
Correct answer is D
No explanation has been provided for this answer.
The part of the cell that is responsible for the production of energy is
cell membrane
cytoplasm
mitochondrion
nucleus
Correct answer is C
No explanation has been provided for this answer.