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 1201:

  Physiological adaptation to very dry conditions in animal demonstrates

  Options:
  A) Xeromorphism
  B) Hibernation
  C) Aestivation
  D) Rejuvenation
  Show Answer
  The correct answer is C .
• Question 1202: In a field experiment, the frequency of water leaf was observed to be 48 after 20 tosses of a 2m² quadrat. What is the density of the plants in the field? Options:
  A) 1.2 per m²
  B) 2.4 per m²
  C) 4.8 per m²
  D) 9.6 per m²
  Show Answer
  The correct answer is A .
• Question 1203:

  Total salt content in blood is about

  Options:
  A) 1.85 to 1.9%
  B) 11.85 to 11.9%
  C) 2.85 to 2.9%
  D) 0.85 to 0.9%
  Show Answer
  The correct answer is D .
• Question 1204: An example of a fruit that develops from a single carpel is Options:
  A) okro
  B) tomato
  C) bean
  D) orange
  Show Answer
  The correct answer is C .
• Question 1205:

  

  Use the diagram above to answer this question. The part responsible for photosynthesis is labelled

  Options:
  A) III
  B) IV
  C) I
  D) II
  Show Answer
  The correct answer is A .
• Question 1206: Choose the sequence which represents the correct order of organisms in a food chain. Options:
  A) Grass, snake, toad, grasshopper, hawk
  B) Grass, grasshopper, toad, snake, hawk
  C) Grass, grasshopper, snake, toad, hawk
  D) Grass, snake, grasshopper, toad, hawk
  E) Grass, toad, snake, grasshopper, hawk
  Show Answer
  The correct answer is B .
• Question 1207:

  

  The structure responsible for trapping the sun's energy during photosynthesis is

  Options:
  A) 5
  B) 6
  C) 3
  D) 2
  E) 8
  Show Answer
  The correct answer is C .
• Question 1208: In the kidney, both useful substances and wastes are removed from the blood by Options:
  A) Filtration
  B) selective absorption
  C) dialysis machine
  D) excretion
  Show Answer
  The correct answer is A .
• Question 1209: I. High birth rate and high immigration rate II. Low birth rate and high immigration rate II. Low mortality rate and low emigration IV. High mortality rate and high emigration rate. Which combination of the above can cause rapid over-crowding in climax biotic communities and human settlements? Options:
  A) II and III
  B) I and III
  C) I and IV
  D) I and II
  Show Answer
  The correct answer is B .
• Question 1210: The organ situated in the pericardia cavity of a mammal is the Options:
  A) heart
  B) liver
  C) stomach
  D) spleen
  Show Answer
  The correct answer is A .