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 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 .
• Question 32:

  One of the following is an effect of clay soil on vegetation

  Options:
  A) Supports luxuriant vegetation such as forest
  B) Supports scanty vegetation
  C) Does not support light vegetation
  D) Support arid vegetation
  Show Answer
  The correct answer is A .
• Question 33: Which of the vertebra has a projection called odontoid process? Options:
  A) Atlas
  B) Axis
  C) Thoracic
  D) Lumber
  E) Caudal
  Show Answer
  The correct answer is B .
• Question 34: Which of the following is common to a dicotyledonous stem and monocotyledonous root? Options:
  A) Medullary rays
  B) Central pith
  C) Wide cortex
  D) Narrow cortex
  E) Pericycle fibres
  Show Answer
  The correct answer is B .
• Question 35:

  Which component of blood is responsible for carrying oxygen to the body tissues?

  Options:
  A) Platelets
  B) White blood cells
  C) Red blood cells
  D) Plasma
  Show Answer
  The correct answer is C .
• Question 36: Blood platelets are important because they are Options:
  A) amoeboid and nucleated
  B) produce antitoxins
  C) produce antibodies
  D) digest harmful bacteria
  E) release thrombin for blood clothing
  Show Answer
  The correct answer is E .
• Question 37:

  

  In H, the cotyledons are carried above the soil because

  Options:
  A) the epicotyl grows faster than the hypocotyl
  B) the hypocotyl grows faster than the epicotyl
  C) both grow at the same rate
  D) the epicotyl outgrow the radicle
  Show Answer
  The correct answer is B .
• Question 38: Which of the following insects lays its eggs in horny, purse-like cases? Options:
  A) Mosquito
  B) Butterfly
  C) Termite
  D) Cockroach
  Show Answer
  The correct answer is D .
• Question 39:

  Digestive enzymes are responsible for

  Options:
  A) Breaking down food into smaller molecules
  B) Absorbing nutrients into the bloodstream
  C) Regulating the pH of the digestive tract
  D) Transporting food through the digestive system
  Show Answer
  The correct answer is A .
• Question 40: Mosses, liverworts and ferns can be grouped together because they Options:
  A) Are all aquatic plants
  B) All grow in deserts
  C) Are seedless plants
  D) Have undifferentiated plant bodies
  E) All produce colourless flowers
  Show Answer
  The correct answer is C .