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 1501: If an isolated living cell is left in distilled water for two hours, it is likely to Options:
  A) lose some of its water to the surrounding water
  B) lose all of its water to the surrounding water
  C) reproduce by binary fission
  D) become more turgid
  E) die due to excess water
  Show Answer
  The correct answer is D .
• Question 1502: In mammalian development, the function of the yolk is to Options:
  A) supply nutrients to the embryo
  B) act as the shock-absorber to the foetus
  C) supply air to the embryo
  D) facilitates the process of excretion in the foetus
  Show Answer
  The correct answer is A .
• Question 1503: Environmental pollutants which can work through the media of water, soil and air include Options:
  A) carbon monoxide
  B) noise
  C) sulphur(IV)oxide
  D) smoke
  Show Answer
  The correct answer is C .
• Question 1504: Oozing out of water from the leaves of plants in a humid environment is known as Options:
  A) transpiration
  B) osmosis
  C) pinocytosis
  D) guttation
  Show Answer
  The correct answer is D .
• Question 1505: The flippers of a whale and the fins of a fish are examples of Options:
  A) divergent evolution
  B) coevolution
  C) continous variation
  D) convergent evolution
  Show Answer
  The correct answer is D .
• Question 1506: The part of the mammalian skin involved in temperature regulation is the Options:
  A) sweat gland
  B) hair papilla
  C) hair follicle
  D) sebaceous gland
  Show Answer
  The correct answer is A .
• Question 1507: In an experiment to determine the percentage of air in a soil sample, the following readings were recorded: volume of water in measuring cylinder = 500 cm³volume of soil added to water = 350 cm³volume of water and soil after stirring = 800 cm³the percentage of air in the soil sample is Options:
  A) 6.25%
  B) 10.36%
  C) 14.28%
  D) 43.28%
  Show Answer
  The correct answer is A .
• Question 1508: Red blood cells are also known as _________? Options:
  A) erythrocytes
  B) thrombocytes
  C) phagocytes
  D) leucocytes
  Show Answer
  The correct answer is A .
• Question 1509:

  

  Use the diagram shown to answer the question. The experiment above is used to demonstrate the process of

  Options:
  A) transportation
  B) water culture
  C) diffusion
  D) osmosis
  Show Answer
  The correct answer is D .
• Question 1510: Most cells in higher animals retain their power of division EXCEPT Options:
  A) lymphocytes
  B) nerve cells
  C) malpighian cells
  D) germ cells
  Show Answer
  The correct answer is B .