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 51: Carbon (IV) oxide content of the atmosphere is least affected by Options:
  A) cutting down and clearing of forests
  B) forest fires
  C) burning of fossil fuels
  D) plant and animal respiration
  Show Answer
  The correct answer is A .
• Question 52: The major site of photosynthesis in the leaf is the Options:
  A) palisade parenchyma
  B) mesophyll parenchyma
  C) upper epidermis
  D) lower epidermis
  Show Answer
  The correct answer is A .
• Question 53: In a group of male Agama lizards, the one with the brightest head colour is the Options:
  A) dominant
  B) youngest
  C) oldest
  D) largest
  Show Answer
  The correct answer is A .
• Question 54:

  A universal recipient of blood belongs to blood group?

  Options:
  A) O
  B) AB
  C) B
  D) A
  Show Answer
  The correct answer is B .
• Question 55: Vaccination is carried out in order to Options:
  A) check the production of poison
  B) increase the activity of white blood cells
  C) increase the number of red blood cells
  D) stimulate the production of antibodies
  Show Answer
  The correct answer is D .
• Question 56: In which of these association is much harm done to one of the partners? Options:
  A) Symbiosis
  B) Epiphytism
  C) Commensalism
  D) Parasitism
  E) Mutualism
  Show Answer
  The correct answer is D .
• Question 57: Exponential increase in the population of an organism is a characteristic feature off Options:
  A) binary fission
  B) sexual reproduction
  C) budding
  D) vegetative propagation
  Show Answer
  The correct answer is A .
• Question 58: Which of the following is the youngest plant tissue Options:
  A) Meristem
  B) Phloem
  C) Epidermis
  D) Xylem
  Show Answer
  The correct answer is A .
• Question 59: The micro-organisms that causes Typhoid disease is Options:
  A) trypanosome gambiense
  B) Salmonella typhi
  C) entamocbahistolytica
  D) plasmodium sp
  Show Answer
  The correct answer is B .
• Question 60: An hormoiothermic animal kept in a room where the temperature is lower than the body temperature may lose heat by four physical process. Which of the following processes is NOT connected with the body temperature regulation ? Options:
  A) Radiation
  B) Sweat
  C) Evaporation
  D) Conduction
  E) Convection
  Show Answer
  The correct answer is E .