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 191:

  Conversion of atmosphere carbon into chemical bond energy occurs during the process of?

  Options:
  A) transpiration
  B) photosynthesis
  C) digestion
  D) respiration
  Show Answer
  The correct answer is B .
• Question 192: The theory of use and disuse of organs was promulgated by Options:
  A) Alfred Wallace
  B) Charles Darwin
  C) Gene Lamarck
  D) Robert Hook
  Show Answer
  The correct answer is C .
• Question 193: The activity of ptyalin is likely to decrease with an increase in concentration of Options:
  A) oxygen
  B) starch
  C) protein
  D) acid
  Show Answer
  The correct answer is D .
• Question 194: In human reproduction, the zygote formed as a result of fertilization gets attached to the wall of the uterus. The process is called Options:
  A) Sexual reproduction
  B) Cohesion
  C) Pregnancy
  D) Implantation
  E) Viviparity
  Show Answer
  The correct answer is D .
• Question 195: The vascular tissues in higher plants are responsible for Options:
  A) the movement of food and water
  B) suction pressure
  C) transpiration pull
  D) the transport of gases and water
  Show Answer
  The correct answer is A .
• Question 196: During the dry season in the tropics, the body metabolism of some animals slows to a minimal level in a process referred to as Options:
  A) hibernation
  B) aestivation
  C) dormancy
  D) senescense
  Show Answer
  The correct answer is A .
• Question 197: The most recently evolved structure in animals is the Options:
  A) hair
  B) cilium
  C) scale
  D) feather
  Show Answer
  The correct answer is A .
• Question 198: A freshwater pond may contain Options:
  A) tadpole, water boatman, leeches and crab
  B) water beetle, shrimps, water snail and water bug
  C) water lily, fish, water scorpion and dragon larva
  D) pon skater, water lily, shark and mosquito larva
  Show Answer
  The correct answer is C .
• Question 199:

  I. High birth rate and high immigration rate

  II. Low birth rate and high immigration rate

  III. Low mortality rate and low emigration rate

  IV. High mortality rate and high emigration rate.

  Which combination of the above can cause rapid over-crowding in climax biotic communities and human settlements?

  Options:
  A) II and III
  B) I and III
  C) I and IV
  D) I and II
  Show Answer
  The correct answer is B .
• Question 200: Bacteria in the large intestine of man are important in the Options:
  A) synthesis of vitamins K and B₂
  B) digestion of vegetables
  C) synthesis of vitamins A and D
  D) absorption of water
  Show Answer
  The correct answer is A .