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 331: What would happen to a man whose pancreas has been surgically removed? Options:
  A) The level of blood sugar would increase
  B) The glycogen content of the liver would increase
  C) His blood pressure would decrease
  D) His weight would increase appreciably
  Show Answer
  The correct answer is A .
• Question 332: In plants which of the following is required in minute quantities for growth? Options:
  A) Copper
  B) Potassium
  C) Phosphorus
  D) Sodium
  Show Answer
  The correct answer is A .
• Question 333:

  

  The part of the plant where photosynthesis is least likely to take place is

  Options:
  A) I
  B) II
  C) III
  D) IV
  Show Answer
  The correct answer is D .
• Question 334: Important abiotic factors which affects all plants and animals in the habitat are Options:
  A) temperature and turbidity
  B) rainfall and relative humididty
  C) salinity and wind direction
  D) temperature and rainfall
  Show Answer
  The correct answer is D .
• Question 335: Which of the following statements is not true of a fish? Options:
  A) respires with the use of gills
  B) covered with scales
  C) they are homeothermic
  D) they are poikilothermic
  Show Answer
  The correct answer is C .
• Question 336:

  

  In the diagram, The economic importance of the larva is that it

  Options:
  A) is eaten by birds
  B) develop into a moth
  C) resembles the plant on which it lives
  D) feeds on the leaves of crops
  Show Answer
  The correct answer is D .
• Question 337: The use of moist skin for respiration in amphibians is known as Options:
  A) cellular respiration
  B) cutaneous respiration
  C) buccal respiration
  D) pulmonary respiration
  Show Answer
  The correct answer is B .
• Question 338: A plant parenchyma cell also acts as a supporting tissue when it Options:
  A) becomes flaccid
  B) contains crystals
  C) becomes turgid
  D) is pigmented
  Show Answer
  The correct answer is C .
• Question 339: If you cross breed a tall variety (Tt) of maize with a short variety (tt), the ratio of tall to short plants in the offspring will be Options:
  A) 2:1
  B) 1:2
  C) 1:1
  D) 1:3
  E) 3:1
  Show Answer
  The correct answer is C .
• Question 340: In an agricultural ecosystem, the biotic component consists of Options:
  A) crop, pest and beneficial insects
  B) crops, temperature and humidity
  C) pests, beneficial insects and water
  D) crops, water and soil
  Show Answer
  The correct answer is A .