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 201: Root hairs are developed from the Options:
  A) root apex
  B) epidermis of root
  C) vascular bundles
  D) endodermis
  E) pericycle
  Show Answer
  The correct answer is B .
• Question 202: A green snake in green grass is able to escape notice from predators because of its Options:
  A) disruptive colouration
  B) counter shading
  C) warning colouration
  D) cryptic colouration
  Show Answer
  The correct answer is D .
• Question 203: The most likely first colonizers of a bare rock are Options:
  A) mosses
  B) ferns
  C) lichen
  D) fungi
  Show Answer
  The correct answer is C .
• Question 204: The water cycle is maintained mainly by Options:
  A) evaporation of water in the environment
  B) evaporation and condensation of water in the environment
  C) condensation of water in the environment
  D) transpiration and respiration in plants
  Show Answer
  The correct answer is B .
• Question 205: Osmosis can be defined as the movement of Options:
  A) Molecules from solution of higher concentration to low concentration
  B) Molecules from solution of low concentration to high concentration
  C) Water from solution of high concentration to low concentration
  D) Water across a semi-permeable membrane from solution of low concentration to high concentration
  E) Water across a semi-permeable membrane from solution of high concentration to low concentration
  Show Answer
  The correct answer is E .
• Question 206: The chromosome number of a cell before and after the process of meiosis is conventionally represented as Options:
  A) 2n → 2n
  B) n → n
  C) n → 2n
  D) 2n → n
  Show Answer
  The correct answer is D .
• Question 207: When the original king and queen of termites die, they are replaced by Options:
  A) the king and queen of another colony
  B) some adult reproductives from the same colony
  C) some adult workers which are specially fed breed
  D) developing nymphs nurtured as secondary reproductives
  Show Answer
  The correct answer is B .
• Question 208: The elephant grass is propagated vegetatively by means of Options:
  A) corms
  B) bubils
  C) suckers
  D) stolons
  Show Answer
  The correct answer is D .
• Question 209: White blood cells are also known as Options:
  A) erythrocytes
  B) leucocytes
  C) lymphocytes
  D) phagocytes
  Show Answer
  The correct answer is B .
• Question 210:

  

  In the diagram, the importance of the association to the fungus is that it obtains

  Options:
  A) a partner for reproduction
  B) anchorage from the algea
  C) oxgen and carbohydrates from the algae
  D) water and mineral salts from the algae
  Show Answer
  The correct answer is C .