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 1401: In the absence of oxygen, the pyruvic acid produced during glycolysis is converted to CO₂ and Options:
  A) water
  B) glycerol
  C) ethanol
  D) citric acid
  Show Answer
  The correct answer is C .
• Question 1402: Animals aestivate when the environment in which they live becomes Options:
  A) hot and dry
  B) cold and wet
  C) warm and humid
  D) windy and snowy
  Show Answer
  The correct answer is A .
• Question 1403:

  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 1404:

  The yellowish colored liquid component of blood that normally holds the blood cells in suspension is

  Options:
  A) serum
  B) plasma
  C) water
  D) thrombocyte
  Show Answer
  The correct answer is B .
• Question 1405:

  A freshwater plant such as water lily can solve the problem of buoyancy by the possession of?

  Options:
  A) aerenchyma tissues
  B) dissected leaves
  C) thin cell walls of the epidermis
  D) water-repelling epidermis
  Show Answer
  The correct answer is A .
• Question 1406:

  

  Which ecological factor exerts the greatest influence on the structure of the profiles?

  Options:
  A) Topographic
  B) Edaphic
  C) Biotic
  D) Climatic
  Show Answer
  The correct answer is D .
• Question 1407: The correct sequence of biomes from northern to southern Nigeria is Options:
  A) Guinea savanna → sudan savanna → tropical rain forest → sahel savanna → estuarine
  B) Estuarine → tropical rain forest → guinea savanna → sahel savanna
  C) Sahel savanna → tropical rain forest → estuarine → guinea savanna
  D) Sahel savanna → sudan savanna → guinea savanna → tropical rain forest → estuarine
  Show Answer
  The correct answer is D .
• Question 1408: Which is the correct order of water loss from the leaf? 1 Mesophyll 2 Veins 3 Substomatals cavity 4 Stomata Options:
  A) 3 → 2 → 1 → 4
  B) 2 → 3 → 1 → 4
  C) 2 → 1 → 3 → 4
  D) 1 → 2 → 3 → 4
  Show Answer
  The correct answer is C .
• Question 1409:

  Name the blood cells in which nucleus is absent

  Options:
  A) Lymphocytes
  B) Blood Platelets
  C) Monocytes
  D) Eosinophil
  Show Answer
  The correct answer is B .
• Question 1410: An anemometer is an instrument for measuring Options:
  A) relative humidity
  B) altitude
  C) wind speed
  D) turbidity
  E) salinity
  Show Answer
  The correct answer is C .