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 1531: The nitrifying bacteria, Nitrosomonas, convert ammonia to Options:
  A) nitirites
  B) nitric acid
  C) niitrates
  D) nitrous oxide
  Show Answer
  The correct answer is A .
• Question 1532:

  People who suck petrol with their mouths run the risk of increasing in their blood the concentration of

  Options:
  A) iron
  B) lead
  C) calcium
  D) magnesium
  Show Answer
  The correct answer is B .
• Question 1533:

  

  The largest number of cassava plants has an approximate height of

  Options:
  A) 1.4m
  B) 1.6m
  C) 1.8m
  D) 2.0m
  Show Answer
  The correct answer is B .
• Question 1534: The movement of plant in response to external stimulus of no particular direction is Options:
  A) taxism
  B) tropism
  C) hyptotropic movement
  D) nastic movement
  E) phototropism
  Show Answer
  The correct answer is D .
• Question 1535: 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 1536:

  What is the term used to describe the maximum number of individuals of a species that an environment can support indefinitely?

  Options:
  A) Ecological niche
  B) Limiting factor
  C) Carrying capacity
  D) Density-dependent factor
  Show Answer
  The correct answer is C .
• Question 1537: The tissue which connects a muscle to a bone is a Options:
  A) cartiligae
  B) muscle fibre
  C) tendon
  D) ligament
  E) connecting fibre
  Show Answer
  The correct answer is C .
• Question 1538: Ecological succession ends with the formation of a stable Options:
  A) niche
  B) population
  C) pioneer community
  D) climax community
  Show Answer
  The correct answer is D .
• Question 1539: Which of the following is a sex-linked character? Options:
  A) Sickle-cell anaemia
  B) Tongue rollling
  C) Skin colour
  D) Colour blindness
  Show Answer
  The correct answer is D .
• Question 1540: A plant tissue that carries water and mineral salts is the Options:
  A) cambium
  B) xylem
  C) cortex
  D) phloem
  Show Answer
  The correct answer is B .