Biology Exam Past Questions and Answers | JAMB, WAEC and NECO

Biology is the study of life and living things. It can be divided into different areas that look at the structure, function, anatomy, and behavior of organisms.

• Question 711: A potometer with a leafy shoot weighed 18.9g initially and weighed 17.9g after one hour. From this it follow that Options:
  A) the shoot absorbed 1g of water per hour
  B) 1g of water per hour evaporates from the potometer
  C) the shoot lost 1g of water per hour
  D) the potometer water receded at the rate of 1g per hour
  E) the shoot was respiring and lost weight at rate of 1g per hour
  Show Answer
  The correct answer is C .
• Question 712: Which of following movements occur during exhalation? Options:
  A) The diaphragm and intercostal muscles relax
  B) The thoracic cavity increases in volume
  C) The diaphragm and intercostal muscles contract
  D) The diaphragm contracts and the intercostal muscle relax
  Show Answer
  The correct answer is A .
• Question 713: The role of the male adult honey bee is to Options:
  A) clean the hive
  B) ventilates the hive
  C) mate with the queen
  D) care for the young
  Show Answer
  The correct answer is C .
• Question 714: The diseases caused by water-borne pathogens include Options:
  A) gonorrhoea and poliomyelitis
  B) typhoid and syphilis
  C) tuberculosis and cholera
  D) typhoid and cholera
  Show Answer
  The correct answer is D .
• Question 715: The surface of an alveolus in a mammal is well supplied with tiny blood vessels known as Options:
  A) arterioles
  B) venules
  C) arteries
  D) capillaries
  Show Answer
  The correct answer is D .
• Question 716: Red coloration on the head of a male lizard helps it to Options:
  A) mark is territory
  B) camouflage in the enviroment
  C) secure its mate
  D) defend itself
  Show Answer
  The correct answer is C .
• Question 717: The very bright colours in some types of mushroom Options:
  A) are warning that they may be poisonous
  B) indicate they are very taste
  C) attract potential transporters of the spores
  D) perform the same function as bright colours in flowers
  Show Answer
  The correct answer is A .
• Question 718:

  

  The structure labelled 2 is the

  Options:
  A) compound eye
  B) ocellus
  C) antenna
  D) labial palp
  Show Answer
  The correct answer is D .
• Question 719: If a nursing mother is not producing enough milk, her hormonal system is probably deficient in Options:
  A) prolactin
  B) testosterone
  C) thyroxin
  D) insulin
  Show Answer
  The correct answer is A .
• Question 720:

  

  Use the diagram above to answer this question.

  The zone of physiological stress is represented by

  Options:
  A) l and ll
  B) ll only
  C) ll and lll
  D) l and lll
  Show Answer
  The correct answer is D .