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 1851: The equation that can be used to summarize the process of anaerobic breakdown of sugar is Options:
  A) C₂H₁₂O₆ 2C₂H₅OH + 2CO₂
  B) 6Co₂ + 6H₂O C₆H₁₂O₆ + 6O₂
  C) C₆H₁₂O₆ + 6O₂ 6CO₂ + 6H₂O + enegy
  D) C₆H₁₂O₆ 2C₂H₅OH + 2CO₂ + energy
  Show Answer
  The correct answer is D .
• Question 1852: The companion cells are part of the Options:
  A) pericycle
  B) phloem
  C) pith
  D) xylem
  Show Answer
  The correct answer is B .
• Question 1853:

  

  The parts used for feeding is labelled

  Options:
  A) I
  B) J
  C) K
  D) L
  Show Answer
  The correct answer is C .
• Question 1854:

  

  The diagram represents

  Options:
  A) sensory neurone
  B) relay neurone
  C) afferent neurone
  D) motor neurone
  Show Answer
  The correct answer is D .
• Question 1855: The presence of a diastema in the jaw bone indicates that the mammal lacks the teeth suitable for Options:
  A) tearing
  B) chewing
  C) cutting
  D) chewing and tearing
  E) cutting and grinding
  Show Answer
  The correct answer is A .
• Question 1856: Which of the following features of euglena is found only in animals? Options:
  A) Paramylum granules
  B) Flagellum
  C) Pellicle
  D) Pyrenoid
  Show Answer
  The correct answer is C .
• Question 1857: The gall bladder of mammal has a duct connected to the Options:
  A) liver
  B) duodenum
  C) small intestine
  D) pancreas
  Show Answer
  The correct answer is A .
• Question 1858:

  

  The type of interaction shown is referred to as

  Options:
  A) interspecific competition
  B) intraspecific competition
  C) mutualism
  D) cooperation
  Show Answer
  The correct answer is A .
• Question 1859: An evidence of a common ancestral for fishes, amphibians, reptiles, birds and mammals is the Options:
  A) possession of wings by birds and bats
  B) cold-bloodedness of fishes, amphibians and reptile
  C) presence of gilll clefts in vertebrate embryos
  D) possession of scale by fish and reptiles
  Show Answer
  The correct answer is C .
• Question 1860: How does an enzyme affect the rate of a reaction? Options:
  A) It lowers the activation energy of the reaction, increasing the reaction rate.
  B) It raises the activation energy of the reaction, decreasing the reaction rate.
  C) It lowers the activation energy of the reaction, decreasing the reaction rate.
  D) It raises the activation energy of the reaction, increasing the reaction rate.
  Show Answer
  The correct answer is A .