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 891: A dwarf plant can be stimulated to grow to normal height by the application of Options:
  A) thyroxin
  B) gibberellin
  C) insulin
  D) kinin
  Show Answer
  The correct answer is B .
• Question 892: Most irrigated lands often become unproductive in later years because of Options:
  A) loss of fertility
  B) increase in salinity
  C) soil erosion
  D) loss of water
  Show Answer
  The correct answer is A .
• Question 893: The process of transforming the chemical energy of cellular fuels into the high energy bonds of ATP in plants is Options:
  A) autotrophism
  B) photosysnthesis
  C) photolysis
  D) respiration
  Show Answer
  The correct answer is D .
• Question 894: Which of the following is NOT true of wind-pollinated flowers? Options:
  A) A large amount of pollen produced
  B) Light smooth pollen grains
  C) Small inconspicuous flowers
  D) Scented petals
  E) Large pendulous anther
  Show Answer
  The correct answer is D .
• Question 895: Which of the following represents the sequence of protein hydrolysis? 1. polypeptides 2. Amino acides 3. Proteins 4. Peptones Options:
  A) 3 → 1 → 2 → 4
  B) 3 → 2 →4 → 1
  C) 3 → 1 →2 → 4
  D) 3 → 4 → 1 → 2
  E) 3 → 1 → 4 → 2
  Show Answer
  The correct answer is D .
• Question 896: Red blood cells are also known as _________? Options:
  A) erythrocytes
  B) thrombocytes
  C) phagocytes
  D) leucocytes
  Show Answer
  The correct answer is A .
• Question 897: The anatomical evidence usually used in support of the evolutionary relationship among whales, human, birds, and dogs is the possession of Options:
  A) thick skin
  B) pentadactyl limb
  C) tail
  D) epidermal structure
  Show Answer
  The correct answer is B .
• Question 898: The epiphytic habitat can best be described as Options:
  A) arboreal
  B) estaurine
  C) aquatic
  D) terrestrial
  Show Answer
  The correct answer is A .
• Question 899: In anaerobic respiration, glucose is converted to one of the following Options:
  A) Carbon dioxide and water
  B) Carbon dioxide only
  C) Carbon dioxide and alcohol
  D) Alcohol and water
  E) water and acetic acid
  Show Answer
  The correct answer is C .
• Question 900:

  Competition among individuals of a population increases the

  Options:
  A) Number of organisms
  B) Availability of nutrient supplied
  C) Survival of the fittest
  D) Enlargement of the territory
  Show Answer
  The correct answer is C .