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 451: Which of these responses is not voluntarily controlled by the brain? Options:
  A) Dancing
  B) Eating
  C) Sneezing
  D) Writing
  Show Answer
  The correct answer is C .
• Question 452:

  Which of the following functions is performed by the skin to help maintain homeostasis in the human body?

  Options:
  A) Regulation of body temperature
  B) Filtration of blood
  C) Production of hormones
  D) Digestion of food
  Show Answer
  The correct answer is A .
• Question 453: Most irrigated lands often become unproductive in later years because of Options:
  A) loss of fertility
  B) increase in salinity
  C) soil erosion
  D) loss of water
  Show Answer
  The correct answer is A .
• Question 454: Which of these substance is likely to be deficient in the diet of a person having goitre? Options:
  A) potassuim
  B) calcium
  C) iodine
  D) sodium
  E) Phosphorus
  Show Answer
  The correct answer is C .
• Question 455: Which of the following is NOT a characteristic of monocot plants? Options:
  A) Occurrence of secondary thickening
  B) Parallel venation
  C) Scattered vascular bundles
  D) Floral parts arranged in threes
  E) Perianth is usually insignificant
  Show Answer
  The correct answer is A .
• Question 456:

  A beaker of pond water containing few specimens of Euglena was placed in a dark room for two weeks. At the end of this period, the specimens of Euglena were still alive because they were

  Options:
  A) able to carry out holozoic nutrition
  B) able to carry out photosynthesis using carbon dioxide in the pond water
  C) better adapted to life in darkness than to life in light
  D) not overcrowded
  Show Answer
  The correct answer is A .
• Question 457:

  

  The gas occupying the space labelled I is

  Options:
  A) carbon (IV) oxide
  B) nitrogen
  C) hydrogen
  D) oxygen
  Show Answer
  The correct answer is D .
• Question 458:

  In a population of living things, the parameters of size, height, weight and colours are examples of

  Options:
  A) continuous variation
  B) non-heritable variation
  C) discontinuous variation
  D) physiological variation
  Show Answer
  The correct answer is A .
• Question 459:

  

  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 460: A band of connective tissue linking two bones in a joint is known as Options:
  A) tendon
  B) cartillage
  C) synovial membrane
  D) ligament
  Show Answer
  The correct answer is D .