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 1391: the function of lenticels is Options:
  A) to remove excess water in plant
  B) to absorb water from the atmosphere
  C) for gaseous exchange
  D) to absorb light
  E) to store food
  Show Answer
  The correct answer is C .
• Question 1392: The process by which lime is added to clay soil is known as Options:
  A) sedimentation
  B) flocculation
  C) leaching
  D) manuring
  Show Answer
  The correct answer is B .
• Question 1393:

  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 1394: The first four children of a couple were all girls. The probability that the fifth will also be a girl is Options:
  A) 1/5
  B) 1/4
  C) 1/3
  D) 1/2
  Show Answer
  The correct answer is D .
• Question 1395:

  

  Use the diagram to answer the question. The breeding posture illustrated in the diagram is known as

  Options:
  A) mating
  B) amplexus
  C) courtship display
  D) reproductive swimming
  Show Answer
  The correct answer is B .
• Question 1396: When the solute concentration of the cell and its surrounding medium are the same, the solution is said to be Options:
  A) hypertonic
  B) hypotonic
  C) isotonic
  D) acidic
  Show Answer
  The correct answer is C .
• Question 1397:

  Thunderstorm can be beneficial to plants because it

  Options:
  A) adds line to the soil
  B) kills the pest that attacks crops
  C) destroys some of the major crops
  D) adds nitrate to the soil
  Show Answer
  The correct answer is D .
• Question 1398: From which group of animals are the mammals generally believed to have most recently evolved? Options:
  A) Reptiles
  B) Fish
  C) Amphibians
  D) Birds
  Show Answer
  The correct answer is C .
• Question 1399: The following are examples of air borne diseases, except Options:
  A) Chicken pox
  B) Cholera
  C) common cold
  D) Whooping cough
  Show Answer
  The correct answer is B .
• Question 1400:

  Germination is the process in which a seed

  Options:
  A) Begins to photosynthesize
  B) Develops into a mature plant
  C) Absorbs nutrients from the soil
  D) Breaks dormancy and starts to grow
  Show Answer
  The correct answer is D .