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 51:

  How many days does it take for incubation of an egg to release chick?

  Options:
  A) 21
  B) 22
  C) 20
  D) 23
  Show Answer
  The correct answer is A .
• Question 52: A crucible of 5 g m weighed 10 gm after filling with fresh soil. it is then heated in an oven at 100°c for 1 hour. After cooling in a desiccator, the weight was 8 gm. The percentage of water in the soil is Options:
  A) 80%
  B) 60%
  C) 20%
  D) 40%
  Show Answer
  The correct answer is D .
• Question 53: The deficiency of vitamin D leads to Options:
  A) scurvy
  B) pellagra
  C) rickets
  D) beriberi
  E) polio
  Show Answer
  The correct answer is C .
• Question 54: Which of the following is an example of discontinuous variation? Options:
  A) skin colouration
  B) left handedness
  C) body weight
  D) Height
  Show Answer
  The correct answer is B .
• Question 55:

  The appendicular skeleton is made up of the

  Options:
  A) limbs
  B) skull and limbs
  C) phalanges
  D) ulna and radius
  E) girdles and limbs
  Show Answer
  The correct answer is E .
• Question 56:

  Only specially adapted micro-organisms are found in

  Options:
  A) Salty water
  B) Humid air
  C) Moist soil
  D) Mouth cavities
  Show Answer
  The correct answer is A .
• Question 57:

  A group of closely related organisms capable of interbreeding to produce the fertile offspring are known as members of a

  Options:
  A) kingdom
  B) class
  C) family
  D) species
  Show Answer
  The correct answer is D .
• Question 58:

  The under secretion of thyroxine in children results in?

  Options:
  A) goitre
  B) gigantism
  C) kwashiorkor
  D) cretinism
  Show Answer
  The correct answer is D .
• Question 59: Fertilization in humans usually takes place in the Options:
  A) lower part of the uterus
  B) upper part of the uterus
  C) lower part of the oviduct
  D) upper part of the oviduct
  Show Answer
  The correct answer is D .
• Question 60:

  The biological association that contributes directly to succession in a community is

  Options:
  A) competition
  B) predation
  C) parasitism
  D) commensalism
  Show Answer
  The correct answer is A .