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 2311: The plantain reproduces asexually by Options:
  A) suckers
  B) buds
  C) fragments
  D) spores
  Show Answer
  The correct answer is A .
• Question 2312: The sequence of the one-way gaseous exchange mechanism in a fish is Options:
  A) operculum → gills → mouth
  B) gills → operculum → mouth
  C) mouth → operculum → gils
  D) mouth → gills → operculum
  Show Answer
  The correct answer is D .
• Question 2313: Which of these substance is likely to be deficient in the diet of a person having goitre? Options:
  A) potassuim
  B) calcium
  C) iodine
  D) sodium
  E) Phosphorus
  Show Answer
  The correct answer is C .
• Question 2314: Which of the following lists of diseases, their causes and transmission is CORRECT? Options:
  A) Cholera, virus, severe diarrhoea, infected water
  B) Malaria, protozoan, high fever, contact with infected person
  C) Syphilis, virus, veneral disease, sexual intercourse
  D) small pox, virus, skin with blister, close contact with infected person
  E) Sleeping sickness, bacteria, tiredness, headache and dozing, tsetsefly bite
  Show Answer
  The correct answer is D .
• Question 2315: Which of these plants groups are normally propagated by asexual means? Options:
  A) Banana, yam, pineapple and cassava
  B) Yam, cassava, rubber and banana
  C) Yam, cassava, orange and banana
  D) Banana, cashew, coffee and pineapple
  Show Answer
  The correct answer is A .
• Question 2316: Strong short and concical beak to pick and crush seeds is an adaptive feature of Options:
  A) duck
  B) owl
  C) weaver bird
  D) hawk
  Show Answer
  The correct answer is C .
• Question 2317:

  

  Which of the following is the correct order of the developmental stages?

  Options:
  A) 1->2->3->4->5
  B) 5->1->3->2->4
  C) 2->1->3->4->5
  D) 5->3->2->1->4
  Show Answer
  The correct answer is D .
• Question 2318: In the alimentary system of a bird, the function of teeth is carried out by the Options:
  A) crop
  B) beak
  C) gizzard
  D) tongue
  Show Answer
  The correct answer is C .
• Question 2319: Spirogyra and mucor can be grouped together as Thallophyta because Options:
  A) They are unicellular organisms
  B) Their spores could be dispersed by wind
  C) They are capable of living independent lives
  D) They reproduce sexually only
  E) Their bodies are made up of thallus and filaments alternatively
  Show Answer
  The correct answer is E .
• Question 2320: Nitrifying bacteria keep the soil fertile by Options:
  A) converting nitrate to nitrogen
  B) converting ammonium salt to nitrate
  C) converting atmospheric nitrogen to plant nitrogen
  D) converting nitrate to nitrous oxide
  E) converting atmospheric nitrogen to nitrates
  Show Answer
  The correct answer is B .