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 1041: The community of plants in which the same species occur from year to year is the Options:
  A) annual species
  B) pioneer vegetation
  C) perennial species
  D) climax vegetation
  Show Answer
  The correct answer is D .
• Question 1042: Aged erythrocytes are dissolved in the Options:
  A) pancreas
  B) liver
  C) lymph nodes
  D) kidney
  Show Answer
  The correct answer is B .
• Question 1043: Soil fertility can be conserved and renewed by Options:
  A) yearly monocropping
  B) crop rotation and cover crops
  C) bush burning to remove unwanted debris
  D) avoiding artificial manures
  Show Answer
  The correct answer is B .
• Question 1044: The outer layer of the kidney where the Bowman's capsules are found is the Options:
  A) cortex
  B) peivis
  C) medulla
  D) pyramid
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  The correct answer is A .
• Question 1045: The similarity among organisms belonging to the same group will be least within each Options:
  A) family
  B) order
  C) kingdom
  D) species
  Show Answer
  The correct answer is C .
• Question 1046: The colour of the ventral surface of a fish is lighter than that of the dorsal. This is mainly Options:
  A) an adaptation for movement
  B) an adaptation for camouflage
  C) for attracting mates
  D) for regulating body temperature
  Show Answer
  The correct answer is B .
• Question 1047: The most important hormone that induces the ripening of fruit is Options:
  A) Ethylene
  B) Indole acetic acid
  C) Gibberallin
  D) Cytokinin
  Show Answer
  The correct answer is A .
• Question 1048: Mammals acclimatize to reduced oxygen content at high altitudes by Options:
  A) the stimulation of marrow to reduce the amount of erythrocytes produced
  B) increasing the rate at which erythrocytes are destroyed
  C) the stimulation of marrow to produce more erythrocytes
  D) increasing the break down of the protein portion of the erythrocytes
  Show Answer
  The correct answer is A .
• Question 1049: 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 1050: A biotic factor which affects the distribution and abundance of organisms in a terrestrial habitat is Options:
  A) temperature
  B) competition
  C) pH
  D) light
  Show Answer
  The correct answer is B .