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 681: The correct order in a food chain involving the organisms (1)Grasses, (2)Hawks, (3)Snakes, (4)Grasshopper, (5)Lizards is Options:
  A) 1 2 3 4 5
  B) 5 4 3 2 1
  C) 1 4 5 3 2
  D) 3 2 4 5 1
  Show Answer
  The correct answer is C .
• Question 682: Choose the sequence which represents the correct order of organisms in a food chain. Options:
  A) Grass, snake, toad, grasshopper, hawk
  B) Grass, grasshopper, toad, snake, hawk
  C) Grass, grasshopper, snake, toad, hawk
  D) Grass, snake, grasshopper, toad, hawk
  E) Grass, toad, snake, grasshopper, hawk
  Show Answer
  The correct answer is B .
• Question 683: An insect whose economic importance is both harmful and beneficial is the Options:
  A) Tsetsefly
  B) Blackfly
  C) Mosquito
  D) Butterfly
  Show Answer
  The correct answer is D .
• Question 684: The epiphytic habitat can best be described as Options:
  A) arboreal
  B) estaurine
  C) aquatic
  D) terrestrial
  Show Answer
  The correct answer is A .
• Question 685: At what stage in the life history of a mammal is the sex of an individual set? Options:
  A) at adolescence
  B) at puberty
  C) at birth
  D) at conception
  Show Answer
  The correct answer is D .
• Question 686: Colonization of a bare rock surface is termed Options:
  A) evolution
  B) specification
  C) primary succession
  D) secondary succession
  Show Answer
  The correct answer is C .
• Question 687: In Amoeba, osmoregulation is carried out by the Options:
  A) pseudopodium
  B) food vacuole
  C) contractile vacuole
  D) nucleus
  Show Answer
  The correct answer is C .
• Question 688: In mammals, the exchange of nutrients and metabolic products occurs in the Options:
  A) lungs
  B) oesophagus
  C) trachea
  D) lymph
  Show Answer
  The correct answer is D .
• Question 689: Lack of space in a population could lead to an increase in Options:
  A) water scarcity
  B) birth rate
  C) disease rate
  D) dought
  Show Answer
  The correct answer is C .
• Question 690: An organism having one pair of identical genes is Options:
  A) a heterozygote
  B) a hybride
  C) an allelomorph
  D) a homozygote
  E) a diploid
  Show Answer
  The correct answer is D .