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 221: The bacteria type that are arranged in chains are the Options:
  A) staphylococci
  B) clostidia
  C) streptococci
  D) basilli
  Show Answer
  The correct answer is C .
• Question 222: The process by which lime is added to clay soil is known as Options:
  A) sedimentation
  B) flocculation
  C) leaching
  D) manuring
  Show Answer
  The correct answer is B .
• Question 223: The lime water in container C turned milky because Options:
  A) Carbon dioxide was produced by plant during respiration
  B) Carbon dioxide entered through the filter pump
  C) Oxygen reacts with lime water to produce milkiness
  D) Soda lime did not remove carbon dioxide from the air
  E) The delivery tubes were not well connected
  Show Answer
  The correct answer is A .
• Question 224:
  

  The structure can be found in the

  Options:
  A) Sympathetic and parasympathetic nervous systems
  B) Peripheral and central nervous system
  C) Peripheral nervous system only
  D) Central nervous system only
  Show Answer
  The correct answer is B .
• Question 225: A limited factor in a plant population near a chemical factory is likely to be Options:
  A) Light
  B) Humidity
  C) wind
  D) pH
  Show Answer
  The correct answer is D .
• Question 226:

  I. Stomata → Spirogyro II. Alveoli → Earthworm III. Malpighian tubule → Mammal IV. Contractile vacuole → Protozoa.

  Which of the above structures is correctly matched with the organisms in which it is found?

  Options:
  A) lll
  B) ll
  C) l
  D) IV
  Show Answer
  The correct answer is D .
• Question 227: A circulatory system that does not allow mixing of oxygenated and de-oxygenated blood in mammalian heart is referred to as Options:
  A) open
  B) haemocoelic
  C) single
  D) closed
  Show Answer
  The correct answer is D .
• Question 228: 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 229:

  The insect trapping movements of the leaves of the venus fly trap is a behavioural adaptation for

  Options:
  A) support
  B) surviving adverse weather conditions
  C) obtaining food
  D) dormancy
  Show Answer
  The correct answer is C .
• Question 230: The crossing of individuals of the same species with different genetic characters is Options:
  A) cross breeding
  B) polygenic inheritance
  C) non-disjunction
  D) inbreeding
  Show Answer
  The correct answer is D .