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 121: An organism found on a bare rock surface has features of algae and fungi. The organism is Options:
  A) an epiphyte
  B) a lichen
  C) a bryophyte
  D) a fern
  Show Answer
  The correct answer is B .
• Question 122: Which of the substance listed below is a trace element of plants? Options:
  A) Potassium
  B) Sodium
  C) Copper
  D) Phosphate
  E) Nitrate
  Show Answer
  The correct answer is C .
• Question 123: Fehling's solution will readily change colour from blue to reddish colour when it is Options:
  A) mixed with sugar solution in the cold
  B) warmed or heated by itself
  C) mixed with reducing sugar in the cold
  D) warmed or heated with complex solution
  E) warmed with a solution of reducing sugar
  Show Answer
  The correct answer is E .
• Question 124: The light sensitive cells in the human eye is called the ................ Options:
  A) Choroid
  B) Sclerotic layer
  C) retina
  D) cones
  Show Answer
  The correct answer is D .
• Question 125:

  Which of the following type of soil has the highest water retaining capacity?

  Options:
  A) Loam
  B) Laterite
  C) Clay
  D) Sand
  Show Answer
  The correct answer is C .
• Question 126: The construction of dams may lead to an increase in the prevalence of Options:
  A) typhoid fever, measles and yellow fever
  B) tuberculosis, leprosy and trypanosomiasis
  C) guinea worm, malaria and tuberculosis
  D) malaria, bilharziasis and onchocerciasis
  Show Answer
  The correct answer is D .
• Question 127: Treatment of a poor soil with lime supplies Options:
  A) Sulphur
  B) Calcium
  C) Phosphorus
  D) Sodium
  E) Nitrogen
  Show Answer
  The correct answer is B .
• Question 128:

  

  The part that is similar to the bone is labelled

  Options:
  A) IV
  B) III
  C) II
  D) I
  Show Answer
  The correct answer is D .
• Question 129: One of adaptation of Cactus opuntia to conserve water is the reduction of Options:
  A) internodes
  B) stem to leaves
  C) leaves to spine
  D) flower size
  Show Answer
  The correct answer is C .
• Question 130: If a healthy potted plant is continuously kept in dim light Options:
  A) the rate of respiration may equal that of photosynthesis
  B) more carbondioxide and water are taken in
  C) respiration may be halted
  D) the volume of oxygen released increase
  Show Answer
  The correct answer is A .