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 81: In a cell, the genres are carried by Options:
  A) nuclear membranes
  B) chromatin threads
  C) lysosomes
  D) mitochondria
  Show Answer
  The correct answer is B .
• Question 82: Which of the following types of feathers is used for flight in birds? Options:
  A) Quill
  B) Filoplume
  C) covert
  D) Down
  Show Answer
  The correct answer is A .
• Question 83:

  

  Use the diagram shown to answer the question. After an hour, the level of water in the thistle funnel will

  Options:
  A) rise
  B) fall
  C) remain the same
  D) double
  Show Answer
  The correct answer is A .
• Question 84: Exhaled air differs from inhaled air in that it Options:
  A) less amount of carbon(IV) oxide
  B) is usually lower in temperature
  C) often has more oxygen
  D) usually has more water vapour
  Show Answer
  The correct answer is D .
• Question 85:

  

  Using the diagram, the part labelled IV is for

  Options:
  A) excretion
  B) nourishment
  C) protection
  D) respiration
  Show Answer
  The correct answer is C .
• Question 86: 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 87: An example of a sex linked trait is the Options:
  A) ability to grow long hair in females
  B) colour of the skin in humans
  C) ability to roll the tongue
  D) possession of facial hair in adult humans
  Show Answer
  The correct answer is D .
• Question 88:

  

  Evapouration and transpiration are respectively represented by the components labelled

  Options:
  A) I and III
  B) II and III
  C) III and IV
  D) IV and I
  Show Answer
  The correct answer is A .
• Question 89: Stomatal pores open when there is Options:
  A) an increase in the sugar content of guard cells
  B) a decreases in the osmotic concentration of the guard cell
  C) a decrease in the sugar content of mesophyll cells
  D) an increase in the sugar content of mesophyll cells
  Show Answer
  The correct answer is A .
• Question 90:

  Use the diagram to answer the question.

  The type of protective adaption exhibited by the animal is

  Options:
  A) disruptive colouration
  B) flash colouration
  C) countershading colouration
  D) warning colouration
  Show Answer
  The correct answer is C .