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 2001: If the phloem of a healthy plant is killed by heat treatment the Options:
  A) the upward movement of salt will cease
  B) food manufactured in the leaves will accumulate
  C) whole plant will die immediately
  D) leaves of the plant will become yellow
  Show Answer
  The correct answer is B .
• Question 2002:

  

  Use the diagram above to answer this question.The main function of the feathers covering the part labelled is to

  Options:
  A) prevent ectoparasites from attacking the animal
  B) generate heat to keep the animal warm
  C) provide some power for flight
  D) serve as insulator to maintain body heat
  Show Answer
  The correct answer is D .
• Question 2003: The behavioural adaptation in social insects could best be described as Options:
  A) symbiosis
  B) saprophytism
  C) parasitism
  D) commensalisms
  Show Answer
  The correct answer is A .
• Question 2004:

  The overall reaction in glycolysis can be summarised as

  Options:
  A) C${}_6$H${}_{12}$O${}_6$ -----> C${}_3$H${}_4$O${}_3$ + 4H + ATP
  B) C${}_6$H${}_{12}$O${}_6$ -----> 2C${}_3$H${}_4$O${}_3$ + 4H + 2ATP
  C) C${}_6$H${}_{12}$O${}_6$ -----> 2C${}_3$H${}_4$O${}_3$ + 4H + ADP
  D) C${}_6$H${}_{12}$O${}_6$ -----> 2C${}_3$H${}_4$O${}_3$ + 4H + 2ADP
  Show Answer
  The correct answer is B .
• Question 2005:

  Which of the following statements is true about sandy soil?

  Options:
  A) has limited air space
  B) is light and easy to dig
  C) drains slowly
  D) is heavy and poorly aerated
  Show Answer
  The correct answer is B .
• Question 2006: The mineral nutrient that is most bound to the soil is Options:
  A) phosphorus
  B) calcium
  C) iron
  D) potassium
  Show Answer
  The correct answer is C .
• Question 2007: Which of the following sequences is the correct arrangement of tissues in the anatomy of a young dicotyledonous stem from the inside to the outside ? Options:
  A) pith , phloem, cambium, xylem, parenchyma, collenchyma and epidermis
  B) Xylem, phloem, cambium, cortex, endodermis, collenchyma and epidermis
  C) Pith,xylem, cmbium,phloem,, collenchyma, parenchyma and epidermis
  D) phloem, xylem, cambium, cortex, endodermis, collenchyma and epidermis
  Show Answer
  The correct answer is C .
• Question 2008: On what structure are the units of inheritance situated? Options:
  A) Golgi bodies
  B) Ribosomes
  C) Chromosomes
  D) Endoplasmic reticulum
  Show Answer
  The correct answer is C .
• Question 2009:

  Which of the following is an example of conserving resources in an ecosystem

  Options:
  A) Excessive use of chemical fertilizers in agriculture
  B) Introducing invasive species to an ecosystem
  C) Implementing sustainable fishing practices
  D) Cutting down trees for timber production
  Show Answer
  The correct answer is C .
• Question 2010:

  

  Use the diagram below to answer the question that follow:

  The diagram represents a

  Options:
  A) Hygrometer
  B) Wind vane
  C) Anemometer
  D) Rain gauge
  Show Answer
  The correct answer is C .