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 1661:

  The number of times an organism occurs within a given area of a habitat is referred to as

  Options:
  A) Population growth rate
  B) Population frequency
  C) Population growth rate
  D) Population density
  Show Answer
  The correct answer is B .
• Question 1662: The function of the clitellum in the earthworm is to Options:
  A) aid digestion
  B) prevent desiccation
  C) assist locomotion
  D) secrete cocoon
  Show Answer
  The correct answer is D .
• Question 1663: An example of monohybride inheritance in man is Options:
  A) astigmatism
  B) cretinism
  C) hyperthyroidism
  D) albinism
  Show Answer
  The correct answer is D .
• Question 1664:

  Which of the following factors primarily affects the distribution of organisms in an ecosystem

  Options:
  A) Wind speed
  B) Soil pH
  C) Temperature
  D) Day length
  Show Answer
  The correct answer is C .
• Question 1665:

  When bacteria swim from cold to warm regions, this is known as

  Options:
  A) positive phototaxis
  B) negative phototaxis
  C) positive thermotaxis
  D) negative chemotaxis
  Show Answer
  The correct answer is C .
• Question 1666: A circulatory system is very essential in mammals but not in smaller organisms like Amoeba because Options:
  A) Amoeba lives in freshwater
  B) Diffusion is sufficient to transport materials in Amoeba
  C) Amoeba lacks blood containing haemoglobin
  D) Amoeba exibits anaerobic respiration
  Show Answer
  The correct answer is B .
• Question 1667:

  The part labeled III in the above diagram is

  Options:
  A) Root
  B) Gills
  C) Hyphae
  D) Rhizoids
  Show Answer
  The correct answer is C .
• Question 1668:

  The correct pathway for blood flow from the heart to the tissues of mammals is?

  Options:
  A) heart-arteriole-artery-tissues
  B) heart-artery-arteriole-tissues
  C) heart-vein-venule-tissues
  D) heart-venule-vein-tissues
  Show Answer
  The correct answer is B .
• Question 1669: Alkaline pyrogallol was used in an experiment. That experiment must have been connected with Options:
  A) Excretion
  B) Germination
  C) Transpiration
  D) Digestion
  E) Photosynthesis
  Show Answer
  The correct answer is E .
• Question 1670: The axial skeleton of a mammal does not include the bones of the Options:
  A) skull
  B) tail
  C) limbs
  D) back
  E) neck
  Show Answer
  The correct answer is C .