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 771: Which of the following is NOT true of wind-pollinated flowers? Options:
  A) A large amount of pollen produced
  B) Light smooth pollen grains
  C) Small inconspicuous flowers
  D) Scented petals
  E) Large pendulous anther
  Show Answer
  The correct answer is D .
• Question 772: Mangrove swamp can be found Options:
  A) on a seashore with flat terrains
  B) where a river meets the sea
  C) on a mud flat near the sea
  D) where two rivers meet
  Show Answer
  The correct answer is B .
• Question 773:

  The type of fruit that is formed from a single flower having several free carpels is?

  Options:
  A) indehiscent fruit
  B) aggregate fruit
  C) simple fruit
  D) fleshy fruit
  Show Answer
  The correct answer is B .
• Question 774:

  In an agricultural ecosystem, the biotic component consist of

  Options:
  A) crops, pests and beneficial insects
  B) crops, temperature and humidity
  C) pests, beneficial insects and water
  D) crops, water and soil
  Show Answer
  The correct answer is A .
• Question 775: A characteristic that distinguishes bryophytes from flowering plants is the Options:
  A) possession of true stems and leaves
  B) ability to reproduce asexually
  C) absence of vascular tisssues
  D) ability to grow in moist habitats
  Show Answer
  The correct answer is C .
• Question 776: Starting from the skull end the vertebrate are arranged in the following order Options:
  A) axis, atlas, cervical, thoracic and lumber
  B) atls, cervical, axis, thoracic and lumber
  C) atlas, axis, thoracic, cervical and lumber
  D) atlas, axis, cervical, thoracic and lumber
  E) atlas, thoracic, cervical, axis and lumber
  Show Answer
  The correct answer is D .
• Question 777: The study of how and why population size change over time is Options:
  A) Population estimation
  B) Population dynamics
  C) Population ecology
  D) Population cycle
  Show Answer
  The correct answer is B .
• Question 778: An accurate identification of a rapist can be carried out by conducting a Options:
  A) RNA analysis
  B) DNA analysis
  C) blood group text
  D) behavioural traits test
  Show Answer
  The correct answer is B .
• Question 779: Leaching is Options:
  A) Washing away of humus from the soil surface
  B) reducing of soil aeration by pressure
  C) soil erosion by means other than rainfall
  D) loss of organic matter due to exposure to direct sunlight
  E) washing out chalk and limestone from upper layers of by heavy rains
  Show Answer
  The correct answer is A .
• Question 780: The natural process that produces adaptive evolutionary changes is Options:
  A) Mutation
  B) Gene flow
  C) Genetic drift
  D) Natural selection
  Show Answer
  The correct answer is D .