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 761: interveinal chlorosis is normally associated with the deficiency of Options:
  A) magnesium
  B) potassium
  C) iron
  D) calcium
  Show Answer
  The correct answer is A .
• Question 762: The anaerobic fermentation of a glucose molecule yields Options:
  A) 38 ATP molecules
  B) 2 ATP molecules and alcohol
  C) pyruvic acid and alcohol
  D) water and carbon (IV) oxide
  Show Answer
  The correct answer is B .
• Question 763: Which of the following insects undergoes incomplete metamorphosis? Options:
  A) Mosquito
  B) Termite
  C) Housefly
  D) Moth
  Show Answer
  The correct answer is B .
• Question 764:

  

  The process of pollination involves the transfer of pollens from

  Options:
  A) II to III
  B) IV to I
  C) I to II
  D) III to IV
  Show Answer
  The correct answer is A .
• Question 765: Which of the following is not a characteristics of snail? Options:
  A) Bilateral symmetry
  B) Chitinous exoskeleton
  C) Muscular foot
  D) soft unsegmented body in mantle
  Show Answer
  The correct answer is B .
• Question 766: One basic similarity between nervous and endocrine system is that they both Options:
  A) produce widespread effects
  B) transmit very fast impulses
  C) involve the use of chemical substances
  D) produce precise and short-lived effect
  Show Answer
  The correct answer is C .
• Question 767: The maize grain is regarded as a fruit and not a seed because Options:
  A) It is covered by a sheath of leaves
  B) The testa and fruit wall fuse after fertilization
  C) It has both endosperm and cotyledon
  D) It has coleorhiza and coleoptile
  E) The pericarp and seed coat are separated
  Show Answer
  The correct answer is B .
• Question 768: In a Biuret test , some protein was mixed with sodium hydroxide solution. Which of the following chemicals should be added to the mixture for a positive result? Options:
  A) mercurous nitrate
  B) copper sulphate
  C) sodium carbonate
  D) silver nitrate
  Show Answer
  The correct answer is B .
• Question 769: A potometer with a leafy shoot weighed 18.9g initially and weighed 17.9g after one hour. From this it follow that Options:
  A) the shoot absorbed 1g of water per hour
  B) 1g of water per hour evaporates from the potometer
  C) the shoot lost 1g of water per hour
  D) the potometer water receded at the rate of 1g per hour
  E) the shoot was respiring and lost weight at rate of 1g per hour
  Show Answer
  The correct answer is C .
• Question 770: The appendicular skeleton is composed of the pectoral girdle Options:
  A) pelvic girdle, fore and hind limbs
  B) pelvic girdle and fore limns
  C) lumbar vertebrae and pelvic girdle
  D) lumbar vertebrae, fore and hind limbs
  Show Answer
  The correct answer is A .