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 581: Genetically modified food products have not become universally accepted because Options:
  A) they are not tasty as others produced by conventional means
  B) they are usually costlier than others produced by conventional means
  C) their effects on human consumers is not yet fully understand
  D) the technology can be applied only in developed countries
  Show Answer
  The correct answer is C .
• Question 582: In an ecosystem, the LEAST efficient energy transfer link is from Options:
  A) producers to primary consumers
  B) sun to producers
  C) primary consumers to secondary consumers
  D) secondary consumers to decomposers
  Show Answer
  The correct answer is D .
• Question 583: In nature, plants and animals are perpetually engaged in mutualism because Options:
  A) they are rivals
  B) all animals rely on food produced by plants
  C) they utilize respiratory wastes of each other
  D) they are neighbours
  Show Answer
  The correct answer is B .
• Question 584: A mosquito which produces eggs which float, and whose larvae lie horizontal to the water surface, also rests at the angle on a vertical surface. This type of mosquito is Options:
  A) Aedes
  B) Anopheles
  C) Culex
  D) Tiger mosquito
  E) none of the above
  Show Answer
  The correct answer is B .
• Question 585: In a drought situation, plants suffer from water stress which could result in Options:
  A) reduced biochemical activities
  B) enhanced chemical activities
  C) enhanced microbial activities
  D) reduced phototropic activities
  Show Answer
  The correct answer is A .
• Question 586: In woody plants, grass and water vapour are transported across the stems by the Options:
  A) xylem fibres
  B) medullary rays
  C) sieve tubes
  D) phloem fibres
  E) phloem parenchyma
  Show Answer
  The correct answer is A .
• Question 587:

  

  During the movement of the fish from point A to target B, one of these parts is not involved

  Options:
  A) 7
  B) 5
  C) 3
  D) 6
  E) 10
  Show Answer
  The correct answer is E .
• Question 588: Stomata of some plants are sunken and protected by hairs. These are features of Options:
  A) mesophytes
  B) epiphytes
  C) hydrophytes
  D) xerophytes
  Show Answer
  The correct answer is D .
• Question 589: Heat produced in tissue respiration in plants is Options:
  A) a chemical form of energy
  B) the only form of energy
  C) the main form of energy
  D) a useful form of energy
  E) a waste form of energy
  Show Answer
  The correct answer is A .
• Question 590: 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 .