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 31: 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 32:

  I. High birth rate and high immigration rate

  II. Low birth rate and high immigration rate

  III. Low mortality rate and low emigration rate

  IV. High mortality rate and high emigration rate.

  Which combination of the above can cause rapid over-crowding in climax biotic communities and human settlements?

  Options:
  A) II and III
  B) I and III
  C) I and IV
  D) I and II
  Show Answer
  The correct answer is B .
• Question 33: Which of the following is NOT true of spirogyra? Options:
  A) Reproduces by conjugation
  B) Reproduces by fragmentation
  C) Consist of branched filaments
  D) Consist of unbranched filaments
  Show Answer
  The correct answer is C .
• Question 34: Secondary thickening in dicotyledonous stem is controlled by the Options:
  A) xylem
  B) phloem
  C) cambium
  D) pericycle
  Show Answer
  The correct answer is C .
• Question 35: Physiological adaptation to very dry conditions in animals demonstrates Options:
  A) rejuvenation
  B) xeromorphism
  C) hibernation
  D) aestivation
  Show Answer
  The correct answer is D .
• Question 36: The process in which complex substances are broken down into simpler ones is referred to as Options:
  A) anabolism
  B) catabolism
  C) metabolism
  D) tropism
  Show Answer
  The correct answer is B .
• Question 37: Which of the following factors is LEAST likely to affect the animals living in a fresh water habitat? Options:
  A) Turbidity
  B) Temperature
  C) pH
  D) Salinity
  Show Answer
  The correct answer is D .
• Question 38:

  

  Use the diagram above to answer this question.

  The gas evolved in the process is

  Options:
  A) carbon (IV) oxide
  B) nitrogen
  C) oxygen
  D) carbon (II) oxide
  Show Answer
  The correct answer is A .
• Question 39: Which of the following organs regulates the levels of water. salts, hydrogen ions, and urea in the mammals? Options:
  A) Kidney
  B) Colon
  C) Bladder
  D) Liver
  Show Answer
  The correct answer is A .
• Question 40: Darwin is considered the first scientist who correctly explained the theory of Options:
  A) special creation
  B) spontaneous generation
  C) use and disuse
  D) organic evolution
  Show Answer
  The correct answer is D .