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 141: Which of the following is an organ? Options:
  A) Guard cell
  B) Liver
  C) Xylem bundle
  D) Blood
  Show Answer
  The correct answer is B .
• Question 142: The blood vessel which carries blood from the alimentary canal to the liver is the Options:
  A) hepatic artery
  B) hepatic vein
  C) hepatic portal vein
  D) mesenteric artery
  Show Answer
  The correct answer is C .
• Question 143:
  

  This lower jaw is typical of a

  Options:
  A) sheep
  B) rabbit
  C) dog
  D) cat
  Show Answer
  The correct answer is A .
• Question 144: Amoeba moves by means of Options:
  A) Cilia
  B) Flagella
  C) Pseudopodia
  D) Swimmerets
  E) Setae
  Show Answer
  The correct answer is C .
• Question 145: The F₁ of a cross between a tall and a dwarf plant was tall. The F₁ was advanced to F₂. How many of 120F₂ plants will be dwarf? Options:
  A) 30
  B) 60
  C) 90
  D) 120
  Show Answer
  The correct answer is A .
• Question 146: Which of the following vertebrates does the skin function as a respiratory surface? Options:
  A) Rat
  B) Lizard
  C) Fish
  D) Frog
  Show Answer
  The correct answer is D .
• Question 147: Which of the structure listed below is peculiar to the axis vertebra? Options:
  A) Odontoid process
  B) Anterior zygapophysis
  C) Posterior zygapophysis
  D) Lateral spine
  E) Centrum
  Show Answer
  The correct answer is A .
• Question 148: Groundnut is not really a 'nut' in the biological sense because Options:
  A) it is harvested from inside the ground
  B) pericarp is not hard and tough
  C) the fruit is not as hard as coconut
  D) the fruit is not succulent
  E) it is an achene
  Show Answer
  The correct answer is B .
• Question 149:

  Which of the following is an example of a microorganism in action as a disease vector?

  Options:
  A) Fungi decomposing dead plant material
  B) Mosquito transmitting malaria
  C) Bacteria causing food poisoning
  D) Algae producing oxygen through photosynthesis
  Show Answer
  The correct answer is B .
• Question 150: When two heterozygotes mate, the dominant trait will appear in Options:
  A) the F₁ generation only
  B) the F₂ generation only
  C) both the F₁ and F₂ generations
  D) neither the F₁ nor F₂ generation
  Show Answer
  The correct answer is C .