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 2021:

  

  Use the diagram above to answer this question.

  The type of protective adaptation 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 .
• Question 2022: An example of an endospermous seed is Options:
  A) maize gain
  B) cashew nut
  C) cotton seed
  D) been seed
  Show Answer
  The correct answer is A .
• Question 2023:

  Which of the following is a primary source of pollution in aquatic ecosystems?

  Options:
  A) Soil erosion
  B) Industrial discharge
  C) Air pollution
  D) Deforestation
  Show Answer
  The correct answer is B .
• Question 2024: The capture and digestion of insects by a pitcher plant is a special form of nutrition termed Options:
  A) autotrophic
  B) heterotrophic
  C) chemosynthetic
  D) saprophytic
  Show Answer
  The correct answer is B .
• Question 2025: Regulation of blood sugar level takes place in the Options:
  A) pancreas
  B) iluem
  C) liver
  D) kidney
  Show Answer
  The correct answer is C .
• Question 2026: The lymphatic system of mammals rejoins the blood circulatory system at the Options:
  A) hepatic vein
  B) subclavian vein
  C) renal vein
  D) common iliac vein
  Show Answer
  The correct answer is B .
• Question 2027:

  Which of the following substances pass through the root cell membrane by osmosis?

  Options:
  A) Ceil sap
  B) Carbon dioxide
  C) Oxygen
  D) Water
  Show Answer
  The correct answer is D .
• Question 2028:

  

  In a reflex action, impulse flows from

  Options:
  A) 1 to 2
  B) 2 to 1
  C) 4 to 1
  D) 4 to 2
  Show Answer
  The correct answer is A .
• Question 2029: Which of the following is not an excretory organ? Options:
  A) Lungs
  B) Kidney
  C) Leaf
  D) Large intestine
  E) Skin
  Show Answer
  The correct answer is C .
• Question 2030: Plants that show secondary growth are usually found among the Options:
  A) thallophytes
  B) pteridophytes
  C) monocotyledons
  D) dicotyledons
  Show Answer
  The correct answer is D .