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.
The most important hormone that induces the ripening of fruit is
Ethylene
Indole acetic acid
Gibberallin
Cytokinin
Correct answer is A
No explanation has been provided for this answer.
The response of plants to external stimuli in a non-directional manner is known as
Tactic movement
Phototropism
Geotropism
Nastic movement
Correct answer is D
Plant movements that are independent of the direction of the stimulus or that are caused by non-directional stimuli are called nastic movements.
Guava
Maize grain
Coconut
Tomato
Correct answer is B
No explanation has been provided for this answer.
Homologous pairs of chromosome separate during
Cytolysis
Cleavage
Mitosis
Meiosis
Correct answer is D
No explanation has been provided for this answer.
Metabolic production of urea is carried out in the
urinary bladder and kidney
Liver
Pancreas
Kidney and malphigian tubule
Correct answer is B
All the metabolic wastes are excreted in a form of water solutes through the excretory organs (nephridia, Malpighian tubules, kidneys), with the exception of CO2, which is excreted together with the water vapor throughout the lungs. The elimination of these compounds enables the chemical homeostasis of the organism. Urea is produced in the liver and is a metabolite.