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 811: The eggs of birds contains relatively larger quantities of yolk than those of amphibians and reptiles because Options:
  A) birds are generally bigger in size
  B) embryonic development is longer in birds
  C) those of birds are fertilized internally
  D) birds lay shelled eggs
  Show Answer
  The correct answer is B .
• Question 812:

  Long neck in giraffe is used to illustrate the theory of

  Options:
  A) Use and Disuse
  B) Origin of species
  C) Origin of life
  D) Natural selection
  Show Answer
  The correct answer is A .
• Question 813: What combination of character should a prey develop to survive the environment of its predator? Options:
  A) Camouflag, well developed limbs and effective vision
  B) Showy colour, big body and well developed limbs
  C) Camouflage, big body and effective vision
  D) Showy colour, well developed muscles and an acute sense of smell
  Show Answer
  The correct answer is A .
• Question 814: The most common means of transmiting the Acquired Immune Deficiency Syndrome (AIDS) is Options:
  A) from mother to child
  B) through blood transfusion
  C) through sexual intercourse
  D) through the sharing of needles
  Show Answer
  The correct answer is C .
• Question 815:

  Which of the following is a primary source of pollution in aquatic ecosystems?

  Options:
  A) Soil erosion
  B) Industrial discharge
  C) Air pollution
  D) Deforestation
  Show Answer
  The correct answer is B .
• Question 816: In lower plants like mosses, the structure which performs the functions of roots of higher plants is called Options:
  A) root hairs
  B) rootlets
  C) hypae
  D) rhizoids
  E) thalli
  Show Answer
  The correct answer is D .
• Question 817: Fungi are referred to as hetotrophs because they Options:
  A) are filamentous
  B) lack chlorophyll
  C) have mycelium
  D) lack roots
  Show Answer
  The correct answer is B .
• Question 818:

  Which of the following is the primary organ involved in gas exchange during respiration in humans?

  Options:
  A) Diaphragm
  B) Bronchi
  C) Lungs
  D) Trachea
  Show Answer
  The correct answer is C .
• Question 819: The main structure in vertebrates that supports and protects the body is the Options:
  A) skeleton
  B) ligament
  C) muscle
  D) joint
  Show Answer
  The correct answer is A .
• Question 820:
  

  Use the diagram above to answer this question. Arrows represent directional movement materials.

  The arrow labelled ll represents the

  Options:
  A) release of oxygen
  B) intake of carbon (IV) oxide
  C) movement of photosynthates
  D) movement of nutrients
  Show Answer
  The correct answer is A .