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 2061: The scientific study of life is Options:
  A) Botany
  B) Biology
  C) Zoology
  D) Ecology
  Show Answer
  The correct answer is B .
• Question 2062: Which of the following plant hormone is responsible for ripening of fruits? Options:
  A) Gibberellins
  B) Abscisic acid
  C) Ethylene
  D) Cytokinins
  Show Answer
  The correct answer is C .
• Question 2063: Which of these is not a function of the mammalian skin/ Options:
  A) Protection against bacteria infection
  B) Excretion of waste and water
  C) Production of vitamin d when exposed to sun light
  D) production of pigments to reduce temperature
  E) Regulation of body temperature
  Show Answer
  The correct answer is D .
• Question 2064: For growth to occur in organisms, the rate of Options:
  A) food storage must be low
  B) catabolism must exceed that of anabolism
  C) anabolism must exceed that of catabolism
  D) food storage must be high
  Show Answer
  The correct answer is C .
• Question 2065:

  Which of the following describes the function of lymph

  Options:
  A) Temperature regulation
  B) Production of antibodies
  C) Engulfing
  D) Body defence
  Show Answer
  The correct answer is D .
• Question 2066: In a group of male Agama lizards, the one with the brightest head colour is the Options:
  A) dominant
  B) youngest
  C) oldest
  D) largest
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  The correct answer is A .
• Question 2067: During blood transfusion, agglutination may occur as a result of the reaction between Options:
  A) contrasting antigens and antibodies
  B) two different antigens
  C) two different antibodies
  D) similar antigens and antibodies
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  The correct answer is A .
• Question 2068:

  Animals are said to gregarious when

  Options:
  A) they survive adverse conditions of cold weather
  B) they transmit information from one individual to another
  C) they are of the same species moving together in a group
  D) they give an alarm to alert others to show the normal protective behaviour of the group when danger threatens
  Show Answer
  The correct answer is C .
• Question 2069: Yeast respires anaerobically to convert simple sugar to carbon (IV) oxide and Options:
  A) alcohol
  B) acid
  C) oxygen
  D) water
  Show Answer
  The correct answer is A .
• Question 2070: 5 g of oven dried soil was heated in a furnace for 24 hours. After cooling, it weighed 4.8 g. What is the amount of humus in the soil? Options:
  A) 40.0g per 100 g dry soil
  B) 4.4g per 100g dry soil
  C) 4.0 g per 100g dry soil
  D) 0.4g per 100g dry soil
  Show Answer
  The correct answer is C .