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 671: On what structure are the units of inheritance situated? Options:
  A) Golgi bodies
  B) Ribosomes
  C) Chromosomes
  D) Endoplasmic reticulum
  Show Answer
  The correct answer is C .
• Question 672:

  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 673:

  Which of the following is TRUE of the process of conjugation in Paramecium?

  Options:
  A) Micronucleus disintegrates
  B) Each ex-conjugant divides only once
  C) Macro nucleus undergoes division
  D) Each micronucleus divides twice
  Show Answer
  The correct answer is D .
• Question 674:

  

  In the experimental set-up, the rubber sheet represents the organ called

  Options:
  A) pleural cavity
  B) lungs
  C) diaphragm
  D) intercostal muscles
  Show Answer
  The correct answer is C .
• Question 675: Water fleas, wood lice and barnacles belong to the group Options:
  A) arachnida
  B) crustacea
  C) insecta
  D) chilopoda
  Show Answer
  The correct answer is B .
• Question 676:

  

  Use the diagram above to answer this question.

  The structure that controls loss of water vapour during transpiration is labelled

  Options:
  A) l
  B) ll
  C) lll
  D) lV
  Show Answer
  The correct answer is D .
• Question 677: What do bacteria in root nodules derive from the host plant? Options:
  A) Protection and minerals
  B) Water and minerals
  C) Carbonhydrates and water
  D) Protection and carbohydrates
  Show Answer
  The correct answer is A .
• Question 678: The pancreatic juice contains the enzymes amylopsin, Options:
  A) pepsin and trpsinogen
  B) rennin and steapsin
  C) steapsin and trypsinogen
  D) steapsin and ptyalin
  Show Answer
  The correct answer is C .
• Question 679: The gall bladder of mammal has a duct connected to the Options:
  A) liver
  B) duodenum
  C) small intestine
  D) pancreas
  Show Answer
  The correct answer is A .
• Question 680: In a Mendelian cross of red and white varieties of the four O"clock plants, the F₁ generation expresses incomplete dominance by having flower which are Options:
  A) white
  B) red
  C) pink
  D) multicoloured
  Show Answer
  The correct answer is C .