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 511:
  

  What is the function of 3?

  Options:
  A) cutting of large piece of food
  B) seizure and tearing of prey
  C) Grinding of food
  D) Tearing of flesh only
  Show Answer
  The correct answer is B .
• Question 512:

  The study of an individual organism or a single species of organism and its environment is

  Options:
  A) Artecology
  B) Ecological concepts
  C) Synecoloy
  D) Biotic composers
  Show Answer
  The correct answer is A .
• Question 513:

  DNA in eukaryotic cells is contained in the

  Options:
  A) central vacuole
  B) nucleus
  C) lysosome
  D) golgi body
  Show Answer
  The correct answer is B .
• Question 514: The production of violet colouration, when dilute NaOH solution is added to a solution of food substance, followed by drops of 1% CuSO₄ solution while shaking, indicates the presence of Options:
  A) protein
  B) carbohydrates
  C) fats
  D) reducing
  Show Answer
  The correct answer is A .
• Question 515:

  When a marine fish was taken from the ocean and put in a tank of fresh water, it died after a short period because?

  Options:
  A) the tank was too small compared to the large-ocean
  B) the body cells of the fish swelled and burst as a result of the hypotonic fresh water
  C) the body cells of the fish shrank as their sap was hypertonic to the freshwater
  D) there was no food in the tank, so the fish starved
  Show Answer
  The correct answer is B .
• Question 516: Which of the following is one of Lamarck's theories? Options:
  A) Some variations are more favourable to existence in a given environment than others
  B) All living organisms are constantly involved in a struggle to existence
  C) The size of a given population remains fairly constant
  D) New species originates through the inheritance of acquired traits
  Show Answer
  The correct answer is D .
• Question 517: The sign + is used to indicate an association where an organism gains, while 0 is used where an organism is unaffected. An association indicated as +0 is known as Options:
  A) predation
  B) commensalism
  C) parasitism
  D) competition
  Show Answer
  The correct answer is B .
• Question 518:

  The appendicular skeleton is composed of the pectoral girdle?

  Options:
  A) pelvic girdle, fore and hind limbs
  B) pelvic girdle and fore limbs
  C) lumbar vertebrae and pelvic girdle
  D) lumbar vertebrae, fore and hind limbs
  Show Answer
  The correct answer is A .
• Question 519: Which of these products obtained from analyzing sweat from skin is not an excretory product? Options:
  A) water
  B) Salts
  C) Dust
  D) Urea
  E) Urates
  Show Answer
  The correct answer is C .
• Question 520: Angiosperms and gymnosperms belong to the class Options:
  A) schizophyta
  B) spermatophyta
  C) pteridophyta
  D) bryophyta
  Show Answer
  The correct answer is B .