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 801: In the Burret test, some protein was mixed with sodium hydroxide solution. Which of the following chemicals should be added to the mixture for a positive results? Options:
  A) Mercurous nitrates
  B) Copper sulphate
  C) Mercuric nitrate
  D) Sodium carbonate
  E) Ammonium hydroxide
  Show Answer
  The correct answer is B .
• Question 802: 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 803:

  The bright colours of the comb and feathers in the peacock are for?

  Options:
  A) sex differentiation
  B) beauty
  C) courtship
  D) defence
  Show Answer
  The correct answer is C .
• Question 804:

  

  Use the diagram to answer the question that follows:

  The part labelled I is the ________

  Options:
  A) carpel
  B) sepal
  C) petal
  D) stamen
  Show Answer
  The correct answer is D .
• Question 805:

  

  The correct evolutionary sequence of the organisms represented is

  Options:
  A) IV->II->III->I
  B) III->II->I->IV
  C) II->III->IV->I
  D) I->III=>II->IV
  Show Answer
  The correct answer is A .
• Question 806: Which of the following is an example of active transport? Options:
  A) Oxygen exchanging between red blood cells and liver cells
  B) Carbon dioxide exchanging between muscle cells and red blood cells
  C) Water moving out of the small intestine
  D) Sodium being reabsorbed in the kidney
  Show Answer
  The correct answer is D .
• Question 807: which of the following is an agent of a sexually transmitted disease? Options:
  A) Entamoeba histolytica
  B) Salmonella typhi
  C) Treponema pallidum
  D) Clostridium tetani
  Show Answer
  The correct answer is C .
• Question 808:

  

  The type of joint between adjacent bones in the part labelled II is the

  Options:
  A) hinge joint
  B) ball and socket joint
  C) suture joint
  D) sliding joint
  Show Answer
  The correct answer is D .
• Question 809: The hygrometer is used for measuring Options:
  A) relative humudity
  B) specific gravity
  C) rainfall
  D) salinity
  Show Answer
  The correct answer is A .
• Question 810:

  A population is defined as the collection of

  Options:
  A) Similar organism that are found in the same habitat
  B) Similar organisms that breed in the same habitat
  C) Similar organisms that interbreed freely in the same habitat
  D) Similar organism eating the same food
  E) Different organisms in the same habitat
  Show Answer
  The correct answer is C .