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 131: A pair of genes that control a trait is referred to as Options:
  A) an allele
  B) recessive
  C) dominant
  D) a hybird
  Show Answer
  The correct answer is A .
• Question 132: The biological factor that is unique to each individual is the Options:
  A) DNA
  B) eye colour
  C) blood group
  D) RNA
  Show Answer
  The correct answer is A .
• Question 133: The essential structural difference between hydra and tapeworm is that while Hydra Options:
  A) has tentacles, tapeworm is parasitic
  B) is diploblastic, tapeworm is triplobastic
  C) has a mouth, tapeworm feeds by suckers
  D) has mesoderm, tapeworm has mesogloea
  Show Answer
  The correct answer is B .
• Question 134: Deoxygenation blood flows into the right and left lungs through the Options:
  A) pulmonary vein
  B) vena cava
  C) pulmonary artery
  D) subclavian vein
  Show Answer
  The correct answer is C .
• Question 135: The movement of the whole organism to an external stimulus is termed Options:
  A) tropism
  B) a taxis
  C) a nastic movement
  D) a phototropic movement
  Show Answer
  The correct answer is B .
• Question 136: In ferns, the sporophyte Options:
  A) develops from a haploid zygote
  B) reproductive sexually to produce spores
  C) is haploid and dependant on gametophyte
  D) is diploid and independent of the gametophyte
  Show Answer
  The correct answer is D .
• Question 137: The gall bladder of mammal has a duct connected to the Options:
  A) liver
  B) duodenum
  C) small intestine
  D) pancreas
  Show Answer
  The correct answer is A .
• Question 138: Which of the following statements about the dentition of man is INCORRECT ? man has Options:
  A) More molars than incisors
  B) No diastema
  C) The same number of teeth on upper and lower jaw
  D) A total of thirty-two teeth
  E) A total of six molars
  Show Answer
  The correct answer is E .
• Question 139:

  

  Melanin and keratin are produced in the part labelled

  Options:
  A) 2
  B) 3
  C) 4
  D) 5
  Show Answer
  The correct answer is A .
• Question 140: Complex social behaviour and organization are found mostly in Options:
  A) insects
  B) birds
  C) reptiles
  D) mammals
  Show Answer
  The correct answer is D .