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.
Which of the following is the function of the mammalian iris?
closes and opens the eye
Absorbs dangerous rays from sunlight
regulates the amount of light entering the eye
bringing light rays to focus on the retina
Correct answer is C
No explanation has been provided for this answer.
The part of the nervous system that interprets blinking of the eye is the
spinal cord
cerebrum
hind brain
olfactory lobe
Correct answer is C
No explanation has been provided for this answer.
The endocrine gland secreting hormone that induces the thyroid gland to produce more thyroxine is
islets of Langerhans
adrenal gland
pituitary gland
parathyroid gland
Correct answer is C
No explanation has been provided for this answer.
Which of the following endocrine glands is a master gland?
Pituitary gland
Thyroid gland
Pancreas
Ovary
Correct answer is A
No explanation has been provided for this answer.
The glomerular filtrate contains the following substances except?
water
urea
blood corpuscles
glucose
Correct answer is C
Glomerular filtration is the first step in making urine. It is the process that your kidneys use to filter excess fluid and waste products out of the blood.
Glomerular filtrate contains a lot of water, but also important molecules like glucose, amino acids, salts and excretory material, urea.