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 1521: Which of the following will not allow osmosis to take place Options:
  A) pig's bladder
  B) cellophane
  C) parchment paper
  D) transparent polythene
  E) cow's bladder
  Show Answer
  The correct answer is D .
• Question 1522: An example of cryptic colouration is the Options:
  A) Mottled colours on the moths that rest in lichens
  B) bright colour of an insect pollinated flower
  C) Green colour of a plant
  D) Bright marks on poisonous tropical frog on veriegated leaves
  Show Answer
  The correct answer is A .
• Question 1523: If a woman's genotype is Tt Qq Rr, what would be the gene content of her eggs? Options:
  A) TQr, tqr
  B) TQR, tqr
  C) TqR, tQr
  D) tQr, TQR
  Show Answer
  The correct answer is B .
• Question 1524: Size, colour and fingerprints are examples of ______ Options:
  A) physiological variation
  B) discontinuous variation
  C) morphological variation
  D) adaptive variation
  Show Answer
  The correct answer is C .
• Question 1525: Toads and lizards in an ecosystem depend on a limited quantity of food. This is an example of Options:
  A) parasitism
  B) intraspecific competition
  C) predation
  D) interspecific competition
  Show Answer
  The correct answer is D .
• Question 1526:

  Which of the following is an evolutionary trend commonly observed in organisms?

  Options:
  A) Decreased complexity over time
  B) Increased dependence on external resources
  C) Increased genetic diversity within populations
  D) Decreased adaptation to the environment
  Show Answer
  The correct answer is C .
• Question 1527:

  Which of the following substances pass through the root cell membrane by osmosis?

  Options:
  A) Ceil sap
  B) Carbon dioxide
  C) Oxygen
  D) Water
  Show Answer
  The correct answer is D .
• Question 1528:

  The type of nutrition shown by spirogyra is

  Options:
  A) Symbiosis
  B) Holozoic
  C) Chemosynthetic
  D) Holophytic
  Show Answer
  The correct answer is D .
• Question 1529:

  Which of the following is NOT a part of the alimentary canal?

  Options:
  A) Oesophagus
  B) Large intestine
  C) Liver
  D) Small intestine
  Show Answer
  The correct answer is C .
• Question 1530: A phenomenon by which an animal goes into a state of dormancy during the dry season is called Options:
  A) hibernation
  B) aestivation
  C) incubation
  D) deactivation
  Show Answer
  The correct answer is B .