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 631: The hepatic portal vein is characterized by Options:
  A) Beginning and ending with capillaries
  B) Connecting the liver and the kidney
  C) Carrying deoxygenated blood
  D) Ending with large capillaries
  E) Having no capillaries
  Show Answer
  The correct answer is A .
• Question 632: What is the function of Trichocyst in paramecium? Options:
  A) Movement
  B) Defence
  C) Excretion
  D) Reproduction
  Show Answer
  The correct answer is B .
• Question 633: Lack of space in a population could lead to an increase in Options:
  A) water scarcity
  B) birth rate
  C) disease rate
  D) dought
  Show Answer
  The correct answer is C .
• Question 634:

  Competition among individuals of a population increases the

  Options:
  A) Number of organisms
  B) Availability of nutrient supplied
  C) Survival of the fittest
  D) Enlargement of the territory
  Show Answer
  The correct answer is C .
• Question 635: Exponential increase in the population of an organism is a characteristic feature off Options:
  A) binary fission
  B) sexual reproduction
  C) budding
  D) vegetative propagation
  Show Answer
  The correct answer is A .
• Question 636:

  The probability of a baby being a boy or a girl depends on the contribution of the

  Options:
  A) father's sex cells
  B) father's stomatic chromosome
  C) mother's sex cell
  D) mother's X-chromosome
  Show Answer
  The correct answer is A .
• Question 637: Example of water-borne and sex linked diseases are Options:
  A) taeniasis and malaria
  B) cholera and gonorrhoea
  C) typhoid and syphilis
  D) dracunculiasis and haemophilia
  Show Answer
  The correct answer is D .
• Question 638: The organ located within the duodenal loop in the mamal is the Options:
  A) spleen
  B) pancreas
  C) liver
  D) gall bladder
  Show Answer
  The correct answer is B .
• Question 639:

  When a Spirogyra cell is immersed in a salt solution more concentrated than its cell sap,it?

  Options:
  A) remains unchanged
  B) takes tip water and burst
  C) absorbs a little water
  D) loses water and shrivels
  Show Answer
  The correct answer is D .
• Question 640: The recycling method of solid waste disposal is unsuitable for Options:
  A) organic matter
  B) glass
  C) plastic
  D) metal scraps
  Show Answer
  The correct answer is A .