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 231: Which of the following is a feature of the population pyramid of a developing country? Options:
  A) long lifespan
  B) low birth rate
  C) low death rate
  D) short lifespan
  Show Answer
  The correct answer is C .
• Question 232: Exoskeleton is NOT found in the Options:
  A) Maggot
  B) Mosquito larva
  C) Earth worm
  D) Caterpillar
  E) Termite
  Show Answer
  The correct answer is C .
• Question 233:

  

  The part labelled III is for

  Options:
  A) protection
  B) insulation
  C) lubrication
  D) growth
  Show Answer
  The correct answer is B .
• Question 234:

  Which of the following plant tissues is responsible for transporting water and nutrients from the roots to the rest of the plant?

  Options:
  A) Mesophyll
  B) Xylem
  C) Epidermis
  D) Phloem
  Show Answer
  The correct answer is B .
• Question 235:

  Which of the following is NOT true of wind-pollinated flowers?

  Options:
  A) A large amount of pollen produced
  B) Light smooth pollen grains
  C) Small inconspicuous flowers
  D) Scented petals
  E) Large pendulous anther
  Show Answer
  The correct answer is D .
• Question 236: The respiratory organ in the land snail is the Options:
  A) radula
  B) mantle
  C) tentacle
  D) foot
  Show Answer
  The correct answer is D .
• Question 237: The feature that distinguish the toad or frog from the fish is the absence of Options:
  A) scales
  B) lungs
  C) paired appendages
  D) a tail
  E) skin glands
  Show Answer
  The correct answer is A .
• Question 238: 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 239: From which group of animals are the mammals generally believed to have most recently evolved? Options:
  A) Reptiles
  B) Fish
  C) Amphibians
  D) Birds
  Show Answer
  The correct answer is C .
• Question 240: What will be the result of the first filial generation (F₁) and the second filial generation (F₂) of a mono-hybrid cross between pure line normal-winged Drosophilia flies and pure line short-winged flies, if the gene for the normal wing is dominant? Options:
  A) F₁ flies all short-winged and F₂ flies all normal-winged
  B) F₁ flies all normal and F₂ flies all short-winged
  C) F₁ flies all short-winged and three-quarters of F₂ flies are short-winged
  D) F₁ flies all normal-winged and three-quarters of F₂ flies are normal-winged
  Show Answer
  The correct answer is D .