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 261: Grasses recover quickly from bush fires in the savanna because of their Options:
  A) perennating organs
  B) rapid growth rate
  C) fibrous roots
  D) succulent stems
  Show Answer
  The correct answer is C .
• Question 262: In an ecosystem, the LEAST efficient energy transfer link is from Options:
  A) producers to primary consumers
  B) sun to producers
  C) primary consumers to secondary consumers
  D) secondary consumers to decomposers
  Show Answer
  The correct answer is D .
• Question 263:

  

  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 264: In rabbit the chamber of the heart that receives oxygenated blood from the lungs is the Options:
  A) left ventrictle
  B) left auricle
  C) right ventricle
  D) right auricle
  Show Answer
  The correct answer is B .
• Question 265: The study of plants is called Options:
  A) Zoology
  B) Entomology
  C) Parasitology
  D) Botany
  Show Answer
  The correct answer is D .
• Question 266:

  

  Which of the structure becomes the seed coat after fertilization?

  Options:
  A) 1
  B) 2
  C) 3
  D) 4
  E) 5
  Show Answer
  The correct answer is C .
• Question 267:

  What is the function of trichocyst in paramecium?

  Options:
  A) Movement
  B) Defence
  C) Excretion
  D) At which stage in this cycle can man b infected
  Show Answer
  The correct answer is B .
• Question 268: The increasing order of the particle size in following soil type is Options:
  A) clay → sand → silt →gravel
  B) silt → sand → clay → gravel
  C) clay → silt → sand → gravel
  D) silt → clay → sand → gravel
  Show Answer
  The correct answer is C .
• Question 269: Which of the following can bring about the greatest increase in the rate of transpiration? Options:
  A) Increased humidity
  B) Reduced temperature
  C) Reduced wind speed
  D) Reduced humidity
  Show Answer
  The correct answer is D .
• Question 270:

  

  At which temperature will cockroaches not survive after 10 days

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