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 31: The turbidity of a pond can be measured using the Options:
  A) anaemometer
  B) secchi disc
  C) theodolite
  D) hydrometer
  Show Answer
  The correct answer is B .
• Question 32: Oestrogen is a hormone that is synthesized in the Options:
  A) ovaries
  B) testes
  C) anterior pituitary
  D) adrenal cortex
  Show Answer
  The correct answer is A .
• Question 33:

  

  The adult form of iii is a vector of

  Options:
  A) sleeping sickness
  B) river blindness
  C) cholera
  D) elephantiasis
  Show Answer
  The correct answer is D .
• Question 34: In the gene locus for eye colour in humans, the allele for brown eye is dominant over the allele for blue eyes. If a homozygous brown-eyed girl has a brother with blue eyes, what are the likely phenotypes of there parents'eye colour (Eye colour is not a sex linked trait) Options:
  A) Both parents have blue eyes
  B) Their father has blue eyes and their mother has brown eyes
  C) both parents have brown eyes
  D) Their mother has the blue eyes and their father has the brown eyes
  Show Answer
  The correct answer is C .
• Question 35: The first terrestrial vertebrates evolved from Options:
  A) pisces
  B) reptilia
  C) amphibia
  D) mammalian
  Show Answer
  The correct answer is A .
• Question 36:

  What is the function of contractile vacuole in paramecium?

  Options:
  A) Produces Enzymes
  B) Gets rid of excreta
  C) Stores and digest food
  D) Gets rid of excess water
  Show Answer
  The correct answer is D .
• Question 37: If a person is bitten by a snake on the leg, it is advisable for him to Options:
  A) keep moving so that the venom will ooze out with bleeding
  B) Wash the wound with water containing antiseptic
  C) bandage the wound so that germs do not get in through it
  D) Keep still and apply a tourniquet above the wound
  Show Answer
  The correct answer is D .
• Question 38: The mammalian vein which starts with and ends in a capillary network is the Options:
  A) pulmonary vein
  B) mesenteric vein
  C) renal vein
  D) hepatic potal vein
  Show Answer
  The correct answer is D .
• Question 39: Kwashiorkor is caused by severe deficiency of Options:
  A) Water
  B) Oil
  C) Drugs
  D) Proteins
  E) Sugars
  Show Answer
  The correct answer is D .
• Question 40:

  

  The figure above shows diagram for the correction of shortsightedness. If the unbroken lines represents light rays from the object and the broken lines the refracted rays through the lens, which of these is correct

  Options:
  A) A
  B) B
  C) C
  D) D
  E) E
  Show Answer
  The correct answer is D .