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 2351: A mammal with red fur and long ears was crossed with another having white fur and short ears. If the offspring had a red fur and short ears, the Options:
  A) character are linked
  B) character are not linked
  C) parents are related
  D) parents are not related
  Show Answer
  The correct answer is A .
• Question 2352: In a bakery, yeast is added to flour to make bread rise. This is possible because yeast produces Options:
  A) alcohol
  B) oxygen
  C) carbon dioxide
  D) energy
  E) ethanol
  Show Answer
  The correct answer is C .
• Question 2353:

  Ecological Zone	Temperature (oC)	Rainfall (mm)
  I	45	300
  II	32	2000
  III	30	2200
  IV	15	800

  From the table above which of the zones is likely to be desert?

  Options:
  A) I
  B) II
  C) III
  D) IV
  Show Answer
  The correct answer is A .
• Question 2354: The factors that determine the distribution of vegetation zones are Options:
  A) temperature, light, rain and humidity
  B) light, humidity, air and mist
  C) temperature, light, air and humidity
  D) humidity, snow, frost and dew
  Show Answer
  The correct answer is A .
• Question 2355:

  An accurate identification of a rapist can be carried out by conducting

  Options:
  A) RNA analysis
  B) DNA analysis
  C) blood group test
  D) behavioural tests
  Show Answer
  The correct answer is B .
• Question 2356: Which of the following causes pollution? Options:
  A) Consumption of canned drink
  B) The addition of fertilizer to farmland
  C) Respiration of living organism
  D) Burning of refuse
  Show Answer
  The correct answer is D .
• Question 2357:

  How many days does it take for incubation of an egg to release chick?

  Options:
  A) 21
  B) 22
  C) 20
  D) 23
  Show Answer
  The correct answer is A .
• Question 2358:

  Which organs are part of the alimentary canal in the human digestive system?

  Options:
  A) Salivary glands, tongue, and pharynx
  B) Large intestine, appendix, and rectum
  C) Stomach, liver, and gallbladder
  D) Oesophagus, pancreas, and small intestine
  Show Answer
  The correct answer is D .
• Question 2359:

  Mass of a crucible = 10g,

  Mass of a crucible and soil before heating =29g

  Mass of a crucible and soil after heating = 18g

  From the information above, determine the percentage of water in the given soil sample?

  Options:
  A) 20%
  B) 25%
  C) 40%
  D) 60%
  Show Answer
  The correct answer is D .
• Question 2360:

  

  In the diagram, the part labelled IV indicated that the yeast population has

  Options:
  A) reached its maximum size
  B) reached senescence
  C) stopped metabolizing food
  D) started dying
  Show Answer
  The correct answer is A .