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 1541: The lungs of the lung fish is an adaptation for respiration _______? Options:
  A) to complement gills while in water
  B) to complement gills while on land
  C) while on land
  D) while in water
  Show Answer
  The correct answer is D .
• Question 1542: Free nitrogen is released to the atmosphere by Options:
  A) Nitrogen-fixing bacteria
  B) nitrifying bacteria
  C) denitrifying bacteria
  D) saprophytic bacteria
  Show Answer
  The correct answer is C .
• Question 1543: 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 1544: Angiosperms and gymnosperms belong to the plants group known as Options:
  A) schizophyta
  B) bryophyta
  C) pteridophyta
  D) spermatophyta
  Show Answer
  The correct answer is D .
• Question 1545: The three important organs that are situated close to the stomach are Options:
  A) Kidney, liver and gall bladder
  B) pancreas, liver and kidney
  C) liver, kidney and spleen
  D) gall bladder, pancreas and spleen
  Show Answer
  The correct answer is D .
• Question 1546:

  Which of the following structures is not a skeletal material?

  Options:
  A) Chitin
  B) Cartilage
  C) Bone
  D) Muscle
  Show Answer
  The correct answer is D .
• Question 1547: If the gall bladder of a mammal is damaged, which of the following will be most seriously affected? Options:
  A) Glycolysis
  B) Digestion of starch
  C) Digestion of fats and oil
  D) Digestion of proteins
  Show Answer
  The correct answer is C .
• Question 1548: The function of ribosomes in cell is Options:
  A) protein synthesis
  B) starch synthesis
  C) transport of materials
  D) lipid storage
  Show Answer
  The correct answer is A .
• Question 1549:

  

  The part labelled II is

  Options:
  A) pellicle
  B) cytoplasmic connections
  C) flagella
  D) cells
  Show Answer
  The correct answer is B .
• Question 1550:

  Which of the following vertebrates has the most simple structured heart

  Options:
  A) reptile
  B) fish
  C) mammal
  D) Amphibian
  Show Answer
  The correct answer is B .