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 1181:

  When bacteria swim from cold to warm regions, this is known as

  Options:
  A) positive phototaxis
  B) negative phototaxis
  C) positive thermotaxis
  D) negative chemotaxis
  Show Answer
  The correct answer is C .
• Question 1182:

  

  The structure labelled Y is the
  Options:
  A) food vacuole
  B) nucleolous
  C) macronucleus
  D) contractile vacuole
  Show Answer
  The correct answer is C .
• Question 1183:

  In an experiment to estimate the volume of air in a soil sample using a measuring cylinder, it was found that:

  Initial volume of water .... = p cm₃

  Volume of soil before mixing with water = q cm₃

  Final volume of water after adding soil = r cm₃

  From the data above, which of the following deductions is correct?

  Options:
  A) r = p + q
  B) r > p + q
  C) q = r - p
  D) r< p + q
  Show Answer
  The correct answer is A .
• Question 1184:

  

  Use the diagram above to answer this question.

  The function of the part labelled lll is to

  Options:
  A) produce egg cells
  B) protect sperms during fertilization
  C) secrete hormones during coitus
  D) protect the developing embryo
  Show Answer
  The correct answer is A .
• Question 1185: The plants that grow in deserts or very dry areas are referred to as Options:
  A) mesophytes
  B) hydrophytes
  C) epiphytes
  D) xerophytes
  Show Answer
  The correct answer is D .
• Question 1186:
  

  The main function of the structure labelled I is to

  Options:
  A) store food for the young plant
  B) pull the young shoot above the ground
  C) store water for the seedling
  D) protect the young plumule
  Show Answer
  The correct answer is D .
• Question 1187: Sex - linked genes are located on Options:
  A) Y - chromosomes
  B) X - and Y - chromosomes
  C) homologous chromosome
  D) X - chromosome
  Show Answer
  The correct answer is B .
• Question 1188:

  

  After circulation in the lungs, the blood returns to the left auricle through

  Options:
  A) 1
  B) 4
  C) 5
  D) 6
  Show Answer
  The correct answer is D .
• Question 1189:

  

  At which stage in this cycle can a man be infected?

  Options:
  A) 2
  B) 4
  C) 5
  D) 6
  Show Answer
  The correct answer is A .
• Question 1190: The part of the mammalian skin involved in excretion is the Options:
  A) sweat glands
  B) malpighian layer
  C) sebaceous gland
  D) horny layer
  Show Answer
  The correct answer is A .