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 1171:

  

  The grand period of growth is represented by

  Options:
  A) N
  B) M
  C) L
  D) K
  Show Answer
  The correct answer is A .
• Question 1172:

  

  The number shown as 8 refers to

  Options:
  A) upper epidermise
  B) cuticle
  C) stoma
  D) guard cell
  E) lower epidermis
  Show Answer
  The correct answer is D .
• Question 1173: In which of the following plants is swollen shoot disease common? Options:
  A) Groundnut
  B) cocoa
  C) Corn
  D) Cotton
  E) Rubber
  Show Answer
  The correct answer is B .
• Question 1174: Fruit enlargement can be induced by spraying young ovary with Options:
  A) cytokinin, abscisic acid and ethylene
  B) gibberellin, ethylene and abscisic acid
  C) auxin, abscisic acid and ethylene
  D) auxin, cytokinin and gibberellin
  Show Answer
  The correct answer is D .
• Question 1175: An example of a sex linked trait is the Options:
  A) ability to grow long hair in females
  B) colour of the skin in humans
  C) ability to roll the tongue
  D) possession of facial hair in adult humans
  Show Answer
  The correct answer is D .
• Question 1176:

  

  Which organism in the food-web illustrated above is an omnivore?

  Options:
  A) Weevils
  B) Rat
  C) Hawk
  D) Prayer mantis
  Show Answer
  The correct answer is B .
• Question 1177: Atmospheric nitrogen is directly replenished in nature through Options:
  A) the activities of denitrifying bacteria
  B) the breakdown of ammonium salts in the soil
  C) the activities of nitrifying bacteria
  D) the activities of nitrogen-fixing bacteria in root nodules
  E) egestion, death and decay
  Show Answer
  The correct answer is E .
• Question 1178: All living cells require water because it Options:
  A) is a medium for all metabolic reactions
  B) is a medium that neutralizes the acids in cells
  C) is the main source of energy for the cell
  D) prevents the development of dieseases in cells
  Show Answer
  The correct answer is A .
• Question 1179:

  I. Stomata → Spirogyro II. Alveoli → Earthworm III. Malpighian tubule → Mammal IV. Contractile vacuole → Protozoa.

  Which of the above structures is correctly matched with the organisms in which it is found?

  Options:
  A) lll
  B) ll
  C) l
  D) IV
  Show Answer
  The correct answer is D .
• Question 1180: When a colour-blind man marries a carrier woman. What is the probability of their offspring being colour blind? Options:
  A) 25%
  B) 50%
  C) 75%
  D) 100%
  Show Answer
  The correct answer is B .