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 371: The lime water in container C turned milky because Options:
  A) Carbon dioxide was produced by plant during respiration
  B) Carbon dioxide entered through the filter pump
  C) Oxygen reacts with lime water to produce milkiness
  D) Soda lime did not remove carbon dioxide from the air
  E) The delivery tubes were not well connected
  Show Answer
  The correct answer is A .
• Question 372:
  

  From the diagram above the optimal temperature for breeding cockroaches is

  Options:
  A) 15^oC
  B) 19^oC
  C) 24^oC
  D) 33^oC
  Show Answer
  The correct answer is C .
• Question 373:

  

  Use the diagram above to answer this question.

  The function of the part labelled lll is to

  Options:
  A) produce egg cells
  B) protect sperms during fertilization
  C) secrete hormones during coitus
  D) protect the developing embryo
  Show Answer
  The correct answer is A .
• Question 374:

  Use the list of ecological constituents below to answer the question below

  1. Mango 2. Spear grass 3. Goat 4. Sheep 5. Temperature 6. Beans 7. Rock 8. Water

  Items 1-4 can be regarded as

  Options:
  A) a population
  B) a community
  C) an ecosystem
  D) a niche
  Show Answer
  The correct answer is B .
• Question 375: Mycorriza is an associationn between fungi and Options:
  A) protozoans
  B) Roots of higher plants
  C) Bacteria
  D) Filamentous algae
  Show Answer
  The correct answer is B .
• Question 376: Which of the ways of controlling bilharzia can result in pollution? Options:
  A) clearing water weeds on which the snail feed
  B) Treating infected people with drugs
  C) Preventing contamination of water by infected urine and faeces
  D) Applying chemical to kill the snails
  Show Answer
  The correct answer is D .
• Question 377: The arrangement of ovules attached to the sides of a syncarpous ovary with a single chamber is referred to as Options:
  A) free-central placentation
  B) axile placentation
  C) parietal placentation
  D) marginal placentation
  Show Answer
  The correct answer is C .
• Question 378: Which of the following is used to test for the presence of lime in a soil sample? Options:
  A) H₂SO_4(aq)
  B) NaOH_(aq)
  C) HCl_(aq)
  D) HNO_3(aq)
  Show Answer
  The correct answer is C .
• Question 379:

  

  Use the diagram above to answer this question.

  With respect to their decreasing dependence on aquatic conditions for reproduction, which of the following is the correct arrangement of the animals represented?

  Options:
  A) l,IV,II and lll
  B) IV, lll, ll and l
  C) l, ll, IV and lll
  D) lll, ll, IV and l
  Show Answer
  The correct answer is B .
• Question 380: The least adaptive feature of aboreal life is the Options:
  A) possession of fouur limbs
  B) possession of claws
  C) development of long tail
  D) shading of coat colour
  Show Answer
  The correct answer is D .