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 141: Which of the following disease can be caused by a bacterium? Options:
  A) Ringworm
  B) Poliomyelitis
  C) Malaria
  D) Syphilis
  Show Answer
  The correct answer is D .
• Question 142: A gland in the human body secretes two hormones, one of which causes a disease called diabetes when there is a deficiency. Which of these organ produce the hormone? Options:
  A) spleen
  B) Parathyroid
  C) Adrenal body
  D) Thyroid
  E) Pancreas
  Show Answer
  The correct answer is E .
• Question 143: What is the function of the contractile vacuole in paramecium? Options:
  A) Produces enzymes
  B) Gets rid of excreta
  C) Stores and digest food
  D) Gets rid of excess water
  E) Controls movement
  Show Answer
  The correct answer is D .
• Question 144: Which of these statements is NOT true of insects? Options:
  A) They are anthropods
  B) Their body is divide into three distinct regions of head, thorax and abdomen
  C) Their thorax comprises three segments, only two of which bear a pair of appendages each
  D) Respiration is by means of trachea
  E) They undergo metamorphosis
  Show Answer
  The correct answer is C .
• Question 145: Grasses grasshopper lizard snakes hawks. In the food chain, the organism which are the least in number are Options:
  A) grasses
  B) grasshopper
  C) lizards
  D) snakes
  E) hawks
  Show Answer
  The correct answer is E .
• Question 146:

  

  Use the diagram above to answer this question.

  The gas evolved in the process is

  Options:
  A) carbon (IV) oxide
  B) nitrogen
  C) oxygen
  D) carbon (II) oxide
  Show Answer
  The correct answer is A .
• Question 147: Nitrogen is released into the atmosphere when ________ Options:
  A) plants absorbs mineral salt
  B) sugar is completely broken down
  C) through plant uptake
  D) when lightning strike
  Show Answer
  The correct answer is D .
• Question 148:

  Which of the following is an example of a behavioral adaptation for survival in animals?

  Options:
  A) Sharp teeth
  B) Migration
  C) Wings
  D) Camouflage
  Show Answer
  The correct answer is B .
• Question 149:

  Which of the following mechanisms is responsible for providing support in plants?

  Options:
  A) Muscles and bones
  B) Exoskeleton
  C) Endocrine system
  D) Cell walls and turgor pressure
  Show Answer
  The correct answer is D .
• Question 150: The activity of ptyalin is likely to decrease with an increase in the concentration of Options:
  A) oxygen
  B) starch
  C) protein
  D) acid
  Show Answer
  The correct answer is D .