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 1371: One of the following diseases is caused by fungi Options:
  A) cassava mosaic
  B) coffee leaf rust
  C) leaf blight of cassava rossette
  D) disease of groundnut
  Show Answer
  The correct answer is B .
• Question 1372: Nitrification means Options:
  A) conversion of nitrates to nitrogen
  B) fixing nitrogen into plants
  C) conversion of nitrates to nitrites
  D) changing of ammonia to nitrities, then nitrates
  E) nitrogen cycle
  Show Answer
  The correct answer is D .
• Question 1373:

  Accessory material in a chicken egg include the following except

  Options:
  A) Albumen
  B) Shell membrane
  C) Shell
  D) Germinal disc
  Show Answer
  The correct answer is D .
• Question 1374:

  The villus in the small intestine is significant because

  Options:
  A) Increases the surface area for absorption
  B) increases the surface area for digestion
  C) assists in mixing digested food
  D) assists in filtering undigested food
  Show Answer
  The correct answer is A .
• Question 1375: The homozygous condition Hb^sHb^sresults in sickle cell anaemia whereas Hb^AHb^s has the sickling trait. What is the probability that a couple with the sickling trait will give birth to one normal child? Options:
  A) 1/2
  B) 1/4
  C) 1/8
  D) none
  Show Answer
  The correct answer is B .
• Question 1376:
  

  Which level of the pyramid has the least total stored energy?

  Options:
  A) E
  B) F
  C) G
  D) H
  Show Answer
  The correct answer is D .
• Question 1377: Pawpaw seeds collected from a tree with many desirable agronomic qualities did not give rise to plants of desirable character as the parent because Options:
  A) seeds are not reliable for propagating plants
  B) uncontrolled out-crossing can introduced unwanted variability
  C) vegetative propagation is best form of reproduction of all crop
  D) seeds were not physiologically mature at the harvest
  Show Answer
  The correct answer is B .
• Question 1378: People who suck petrol with their mouths run the risk of increasing in their blood the concentration of Options:
  A) iron
  B) lead
  C) calcium
  D) magnesium
  Show Answer
  The correct answer is B .
• Question 1379: One of these is present in both plant and animal cell? Options:
  A) Cell membrane
  B) Cell wall
  C) Chloroplast
  D) Large cell vacuole
  Show Answer
  The correct answer is A .
• Question 1380:

  

  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 .