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 851: Darwin is considered the first scientist who correctly explained the theory of Options:
  A) special creation
  B) spontaneous generation
  C) use and disuse
  D) organic evolution
  Show Answer
  The correct answer is D .
• Question 852: 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 853: The body of a snail is divided into head Options:
  A) thorax and abdomen
  B) visceral mass and abdomen
  C) thorax and foot
  D) visceral mass and foot
  Show Answer
  The correct answer is D .
• Question 854: If a nursing mother is not producing enough milk, her hormonal system is probably deficient in Options:
  A) prolactin
  B) testosterone
  C) thyroxin
  D) insulin
  Show Answer
  The correct answer is A .
• Question 855: Which is the correct order of water loss from the leaf? 1 Mesophyll 2 Veins 3 Substomatals cavity 4 Stomata Options:
  A) 3 → 2 → 1 → 4
  B) 2 → 3 → 1 → 4
  C) 2 → 1 → 3 → 4
  D) 1 → 2 → 3 → 4
  Show Answer
  The correct answer is C .
• Question 856:

  

  In the diagram, the part marked I will contain a high concentration of

  Options:
  A) ascorbic acid
  B) abscisic acid
  C) ethylene
  D) auxin
  Show Answer
  The correct answer is D .
• Question 857:

  Which of the following is a primary source of pollution in aquatic ecosystems?

  Options:
  A) Soil erosion
  B) Industrial discharge
  C) Air pollution
  D) Deforestation
  Show Answer
  The correct answer is B .
• Question 858: The type of reproduction that is common to both Hydra and yeast Options:
  A) conjugation
  B) binary fission
  C) grafting
  D) budding
  Show Answer
  The correct answer is D .
• Question 859: The specific number of chromosomes in each somatic cell is represented by Options:
  A) 2^N
  B) 23
  C) 2N
  D) N
  Show Answer
  The correct answer is C .
• Question 860:

  Maltose is combination of glucose and

  Options:
  A) glucose
  B) sucrose
  C) Galactose
  D) fructose
  Show Answer
  The correct answer is A .