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 2111: One of the following is the unit of life Options:
  A) cell
  B) tissues
  C) organ
  D) system
  Show Answer
  The correct answer is A .
• Question 2112: When oil is poured into the breeding site of mosquitoes, it Options:
  A) deprives the larvae of water
  B) kills the adults
  C) suffocates the pupae
  D) slows doen egg development
  Show Answer
  The correct answer is C .
• Question 2113: Plants that have special devices for trapping and digesting insects are Options:
  A) carnivorous
  B) symbiotic
  C) parasitic
  D) saprophytic
  Show Answer
  The correct answer is A .
• Question 2114: What will happen wen two equal sized pieces of unripe pawpaw labelled X and Y are dropped into equal volumes of concentrated salt solution and distilled water respectively? Options:
  A) pawpaw X will become turgid
  B) both will increase in size
  C) pawpaw Y will become turgid
  D) both will decrease in size
  Show Answer
  The correct answer is C .
• Question 2115:

  

  Which of the labelled parts of the cell contains ribonucleic acid?

  Options:
  A) 1
  B) 2
  C) 3
  D) 5
  Show Answer
  The correct answer is C .
• Question 2116: Which of the following possesses mammary gland? Options:
  A) Dogfish
  B) whale
  C) shark
  D) catfish
  Show Answer
  The correct answer is B .
• Question 2117: After one week of life, the weight of five chicks of the same sex hatched simultaneously from the eggs of the same hen and fed on the same diet were 45g, 40g, 35g, 33g and 30g. This is an example of Options:
  A) growth rate
  B) natural selection
  C) variation
  D) mutation
  Show Answer
  The correct answer is C .
• Question 2118: The presence of stilt roots, pneumatophores, sunken stomata and salt glands are adaptive features of plants found in the Options:
  A) tropical rainforest
  B) mangrove swamps
  C) gressland
  D) montane forest
  Show Answer
  The correct answer is B .
• Question 2119: The maize grain is regarded as a fruit and not a seed because Options:
  A) It is covered by a sheath of leaves
  B) The testa and fruit wall fuse after fertilization
  C) It has both endosperm and cotyledon
  D) It has coleorhiza and coleoptile
  E) The pericarp and seed coat are separated
  Show Answer
  The correct answer is B .
• Question 2120: The region of cell division in a root is Options:
  A) Root cap
  B) Endodermis
  C) Xylem
  D) Piliferous layer
  E) Meristem
  Show Answer
  The correct answer is E .