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 1: In the internal structure of plants, a wide pith in the centre is common to Options:
  A) dicot stems and monocot stems
  B) dicot stem and monocot roots
  C) dicot roots and monocot roots
  D) dicot roots and monocot stems
  Show Answer
  The correct answer is B .
• Question 2: 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 .
• Question 3:

  

  The structure labelled II is used for

  Options:
  A) tasting
  B) feeling
  C) biting
  D) sucking
  Show Answer
  The correct answer is B .
• Question 4:

  The period of inactivity seen in some animals during long period of heat or drought is

  Options:
  A) Migration
  B) Aestivation
  C) Hibernation
  D) Adaptation
  Show Answer
  The correct answer is B .
• Question 5:

  The glomerular filtrate contains the following except

  Options:
  A) Water
  B) Urea
  C) Blood Corpuscles
  D) Glucose
  Show Answer
  The correct answer is C .
• Question 6: The mammalian lung is made air tight by the Options:
  A) pleural cavity
  B) mucous membrane
  C) pleural membrane
  D) diaphragm
  Show Answer
  The correct answer is C .
• Question 7: When it is cold, the blood vessels of the skin Options:
  A) dilates to increase the amount of blood flowing
  B) constrict to reduced the amount of blood flowing to the skin
  C) dilate to reduce the amount of blood flowing to the skin
  D) constrict to increase the amount of blood flowing to the skin
  Show Answer
  The correct answer is B .
• Question 8: The causative agent of bird flu is a Options:
  A) protozoan
  B) virus
  C) bacterium
  D) fungus
  Show Answer
  The correct answer is B .
• Question 9: According to Darwin, the driving force behind evolutionary change is Options:
  A) natural selection
  B) genetic drift
  C) mutation
  D) gene flow
  Show Answer
  The correct answer is A .
• Question 10: The ability of the eye to focus on both near and distant objects is termed Options:
  A) image formation
  B) refraction
  C) hypermetropia
  D) Accomodation
  Show Answer
  The correct answer is D .