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 901: Long neck in giraffe is used to illustrate the theory of Options:
  A) use and disuse
  B) origin of species
  C) origin of life
  D) natural selection
  Show Answer
  The correct answer is D .
• Question 902: What type of fruit is formed from a single flower having several carpels? Options:
  A) Multipe fruit
  B) Simple fruit
  C) Aggregrate fruit
  D) Dehiscent fruit
  E) Indehiscent fruit
  Show Answer
  The correct answer is C .
• Question 903: Which of the following is a waste product of an insect? Options:
  A) Alkaloids
  B) Uric acid
  C) Sweat
  D) Mucilage
  Show Answer
  The correct answer is B .
• Question 904: The organ which secretes digestive enzymes as well as hormones is the Options:
  A) liver
  B) salivary gland
  C) pancreas
  D) spleen
  Show Answer
  The correct answer is C .
• Question 905: 28 g soil sample was heated to a constant weight of 24 g. When further heated to red hot and cooled, it weighed 18 g. What is the percentage of humus in the soil? Options:
  A) 22.2
  B) 55.6
  C) 75.0
  D) 25.0
  E) 35.7
  Show Answer
  The correct answer is A .
• Question 906:
  

  This lower jaw is typical of a

  Options:
  A) sheep
  B) rabbit
  C) dog
  D) cat
  Show Answer
  The correct answer is A .
• Question 907: The most likely first colonizers of a bare rock are Options:
  A) mosses
  B) ferns
  C) lichen
  D) fungi
  Show Answer
  The correct answer is C .
• Question 908: Poliomyelitis is an infectious diseases caused by Options:
  A) virus
  B) protozoan
  C) bacterium
  D) fungus
  Show Answer
  The correct answer is A .
• Question 909: Double fertilization in higher plants is significant because it ensures the Options:
  A) formation of a fertile embryo
  B) formation of a fertile embryo and the endosperm
  C) developement of the seed
  D) developement of the fruit
  Show Answer
  The correct answer is B .
• Question 910: Which of the following is true of the children of a heamophilic man who marries a woman that is not haemophilic and does not carry the trait? Options:
  A) All their sons will be haemophlic
  B) all their daughters will be haemophilic
  C) All their daughters will be carriers
  D) all their sons will be carriers
  Show Answer
  The correct answer is C .