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 81: The growth of a coleoptile towards unilateral light source is due to Options:
  A) rapid rate of photosynthesis
  B) unequal distribution of auxin
  C) the effect of geotropism
  D) the effect of photolysis
  Show Answer
  The correct answer is B .
• Question 82: The hypha of Rhizopus is said to be non septate because it Options:
  A) does not contain chlorophyll
  B) has no cross walls
  C) is vacuolated
  D) stores oil globules
  Show Answer
  The correct answer is B .
• Question 83: Which of the following is a major cause of variation among organisms? Options:
  A) Inbreeding
  B) Backcrossing
  C) Sexual reproduction
  D) Gene dominance
  Show Answer
  The correct answer is D .
• Question 84: Which of these is not true of the insect? The possession of Options:
  A) two pairs of antennae
  B) jointed appendages
  C) exoskeleton
  D) three pairs of legs
  E) segmented body
  Show Answer
  The correct answer is A .
• Question 85: The function of lymph nodes is to Options:
  A) supply oxygen
  B) filter out bacteria
  C) form red blood cells
  D) supply amino acids
  E) supply simple sugars
  Show Answer
  The correct answer is B .
• Question 86:

  Petaloid sepals serve the function of

  Options:
  A) carrying out photosynthesis
  B) attracting pollinating agents to a flower
  C) retaining pollen grains in the corolla tubes
  D) protecting the inner floral parts of the flower
  Show Answer
  The correct answer is D .
• Question 87:

  Use the diagram to answer the question.

  The structure labelled i is

  Options:
  A) photosensitive
  B) radiosensitive
  C) chemoreceptive
  D) tactile
  Show Answer
  The correct answer is D .
• Question 88: The following are ductless glands except Options:
  A) adrenal
  B) pancreatic
  C) parathyroid
  D) salivary
  Show Answer
  The correct answer is D .
• Question 89: The protozoan plasmodium falciparum is transmitted by Options:
  A) female Anopheles mosquitoes
  B) female Aedes mosquitoes
  C) female Culex mosquitoes
  D) Female blackfly
  Show Answer
  The correct answer is A .
• Question 90: The manufacture of carbohydrates by plants takes place only in Options:
  A) the leaves
  B) the green stems
  C) chlorophyllous parts
  D) flowering plants
  Show Answer
  The correct answer is C .