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 341: The construction of dams may lead to an increase in the prevalence of Options:
  A) typhoid fever, measles and yellow fever
  B) tuberculosis, leprosy and trypanosomiasis
  C) guinea worm, malaria and tuberculosis
  D) malaria, bilharziasis and onchocerciasis
  Show Answer
  The correct answer is D .
• Question 342: One disease NOT caused directly by bacteria is Options:
  A) malaria
  B) tuberculosis
  C) pneumonia
  D) tetanus
  E) cholera
  Show Answer
  The correct answer is A .
• Question 343: A farm practice that result in the loss of soil fertility is Options:
  A) mixed farming
  B) bush fallowing
  C) shifting cultivation
  D) continous cropping
  Show Answer
  The correct answer is D .
• Question 344: Which of the following is not a pest of crops? Options:
  A) Bird
  B) Rodent
  C) Bed bug
  D) Grasshopper
  Show Answer
  The correct answer is C .
• Question 345: The importance of practising crop rotation in agriculture is to Options:
  A) maintain soil fertility
  B) improve the nutritional value of crops
  C) control soil erosion
  D) ensure the growth of crops
  Show Answer
  The correct answer is A .
• Question 346: Erythrocytes are known as ________ Options:
  A) white blood cell
  B) red blood cells
  C) phagocytes
  D) leucocytes
  Show Answer
  The correct answer is B .
• Question 347:

  What is the primary function of the liver in the human body?

  Options:
  A) Regulation of body temperature
  B) Regulation of blood pressure
  C) Production of hormones
  D) Detoxification and metabolism of nutrients and drugs
  Show Answer
  The correct answer is D .
• Question 348:

  The hormone which regulates the amount of glucose in the blood is called?

  Options:
  A) Adrenalin
  B) Auxin
  C) Insulin
  D) Thyroxine
  Show Answer
  The correct answer is C .
• Question 349:

  Swollen, bleeding gums are another common sign of which vitamin?

  Options:
  A) Vitamin K
  B) Vitamin B
  C) Vitamin C
  D) Vitamin D
  Show Answer
  The correct answer is C .
• Question 350:

  People who suck petrol with their mouths run the risk of increasing in their blood the concentration of

  Options:
  A) iron
  B) lead
  C) calcium
  D) magnesium
  Show Answer
  The correct answer is B .