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: Milk can be pasteurized by Options:
  A) the addition of common salt
  B) boiling for one hour
  C) heating to 75^oc for 20 minutes
  D) the addition of vinegar
  E) heating to 100^oc for 12 hours
  Show Answer
  The correct answer is C .
• Question 802: A tapeworm has no alimentary canal because Options:
  A) It is autotrophic
  B) It does not feed
  C) It has no enzymes
  D) Its body absorbs digested food
  E) The suckers on the scolex suck blood
  Show Answer
  The correct answer is D .
• Question 803: In mosses the structure which performs the function of water absorption is the _________? Options:
  A) root hairs
  B) rhizoids
  C) capsule
  D) hyphae
  Show Answer
  The correct answer is B .
• Question 804: The sheet of muscle that separates the thoracic and the abdominal cavities is the Options:
  A) diaphragm
  B) intercostal muscle
  C) pleural memberane
  D) pericardium
  Show Answer
  The correct answer is A .
• Question 805: If a dark-skinned woman (Bb) marries an albino man (bb) and they have four children, how many of the children will be dark-skinned? Options:
  A) 3
  B) 2
  C) 1
  D) None
  Show Answer
  The correct answer is B .
• Question 806: Which of the following has the most primitive respiratory system? Options:
  A) snail
  B) fish
  C) insect
  D) mouse
  Show Answer
  The correct answer is A .
• Question 807: During blood transfusion, agglutination may occur when Options:
  A) contrasting antigens reacts with contrasting antibodies
  B) similar antigens react with similar antibodies
  C) two different antigens react with each other
  D) two different antibodies react with each other
  Show Answer
  The correct answer is B .
• Question 808: Which of the following characters is NOT sex-linked? Options:
  A) River blindness
  B) Baldness
  C) Haemophilia
  D) Colour blindness
  Show Answer
  The correct answer is A .
• Question 809:

  

  Which of these plays no role in photosynthesis?

  Options:
  A) 9
  B) 8
  C) 5
  D) 2
  E) 3
  Show Answer
  The correct answer is D .
• Question 810: In a photo-tropic experiment, young seedlings in a box were subjected to light from one direction. The seedling continue to grow erect. Which of the following statement is correct Options:
  A) Only the tip of the seedling received the light
  B) The light was not strong enough
  C) The seedlings were rather too young
  D) The tip of the seedling may have been covered
  E) The box containing the seedling should have been placed on a laboratory bench
  Show Answer
  The correct answer is A .