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 501: Mycorriza is an associationn between fungi and Options:
  A) protozoans
  B) Roots of higher plants
  C) Bacteria
  D) Filamentous algae
  Show Answer
  The correct answer is B .
• Question 502:

  In an ecosystem, the organism which changes light energy into stored chemical energy is the

  Options:
  A) Consumer
  B) Producer
  C) Decomposer
  D) Carnivore
  Show Answer
  The correct answer is B .
• Question 503: Which of the following is likely to encourage inbreeding in plants? Options:
  A) Dioecious
  B) Protandrous
  C) Monoecious
  D) Hermaphrodite
  Show Answer
  The correct answer is C .
• Question 504:

  The butterfly is of great economic importance because

  Options:
  A) of it's use in scientific studies
  B) it sucks nectar from flowers
  C) it adds to the beauty of the environment
  D) it pollinates flowers of crops and other plants
  Show Answer
  The correct answer is D .
• Question 505: 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 506: The function of ribosomes in cell is Options:
  A) protein synthesis
  B) starch synthesis
  C) transport of materials
  D) lipid storage
  Show Answer
  The correct answer is A .
• Question 507:

  Ecological succession refers to

  Options:
  A) The movement of organisms from one habitat to another
  B) The competition among species for limited resources
  C) The process of natural selection in a population
  D) The gradual and predictable change in a community over time
  Show Answer
  The correct answer is D .
• Question 508:

  Floating microscopic heterotrophs are mostly grouped as

  Options:
  A) phytoplankton
  B) zooplankton
  C) microbes
  D) nekton
  Show Answer
  The correct answer is B .
• Question 509:

  

  An economic importance of the organism represented by IV is that

  Options:
  A) it transmit water borne disease to humans
  B) it is distructive to farm crops
  C) its faeces pollutes drinkng water
  D) it helps in the control of mosquito larvae
  Show Answer
  The correct answer is B .
• Question 510:

  The movement of blood between the heart and all other parts of the body beside the lungs is

  Options:
  A) Double circulatory system
  B) Pulmonary system
  C) Single circulation
  D) Systemic circulation
  Show Answer
  The correct answer is D .