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 11: Which of the structure listed below is peculiar to the axis vertebra? Options:
  A) Odontoid process
  B) Anterior zygapophysis
  C) Posterior zygapophysis
  D) Lateral spine
  E) Centrum
  Show Answer
  The correct answer is A .
• Question 12: The function of the ossicles (malleus, incus and stapes) in the mammalian ear is Options:
  A) Transmission of vibrations
  B) Regulation of pressure
  C) Support of the inner ear
  D) Maintenance of balance during motion
  E) Secretion of oil
  Show Answer
  The correct answer is A .
• Question 13: The highest percentage of energy in an ecosystem occurs at the level of the Options:
  A) secondary consumer
  B) decomposers
  C) producers
  D) primary consumers
  Show Answer
  The correct answer is C .
• Question 14:

  The hormones secreted by pancreas serves to

  Options:
  A) Facilitate the development of facial hairs
  B) Raise the level of calcium in the blood
  C) Lower blood glucose level
  D) Make the body react to emergencies
  Show Answer
  The correct answer is C .
• Question 15:

  

  Why is the part labelled 5 thicker than 6?

  Options:
  A) 5 is the left ventricle and 6 the right ventricle
  B) 6 is the left ventricle and 5 the right ventricle
  C) 5 receives blood from the left auricle and 6 from the right
  D) 5 pumps blood round the body and 6 pumps blood into the lungs
  E) 5 deals with oxygenated blood and 6 deals with deoxygenated blood
  Show Answer
  The correct answer is D .
• Question 16:

  

  In the diagram, if species i, ii and iii interact in a community, which of the following statement is true?

  Options:
  A) the population of species ii is growing at a slow rate
  B) the population of species iii has reached its carrying capscity?
  C) the population of species I has become extinct
  D) the population of species I is always
  Show Answer
  The correct answer is C .
• Question 17: Which of these tissue serves the function of support and water conduction Options:
  A) Parenchyma
  B) Collenchymas
  C) Sclerenchyma
  D) Xylem
  E) Phloem
  Show Answer
  The correct answer is D .
• Question 18:

  When the original king and queen of termites die, they are replaced by

  Options:
  A) the king and queen of another colony
  B) some adult reproductives from the same colony
  C) some adult workers which are specially fed to breed
  D) developing nymphs nurtured as secondary reproductives
  Show Answer
  The correct answer is D .
• Question 19: The factor that least affects food shortages in sub-saharan Africa is Options:
  A) flooding
  B) pests
  C) mixed-cropping
  D) drought
  Show Answer
  The correct answer is C .
• Question 20: Fertilizers are lost from the soil through Options:
  A) sheet erosion and evaporation
  B) leaching, underground seepages and run-off
  C) sheet erosion, gully erosion and wind erosion
  D) wind erosion and heavy rainfall
  Show Answer
  The correct answer is B .