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 1071:

  The yellowish colored liquid component of blood that normally holds the blood cells in suspension is

  Options:
  A) serum
  B) plasma
  C) water
  D) thrombocyte
  Show Answer
  The correct answer is B .
• Question 1072: In fresh water marshes and swamps, the most important abiotic factors that organisms have to adapt to is Options:
  A) nature of substratum
  B) high salinity
  C) high temperature
  D) low pH
  Show Answer
  The correct answer is A .
• Question 1073: Urea is produced in the Options:
  A) Liver
  B) Bladder
  C) Spleen
  D) Kidneys
  E) Gall bladder
  Show Answer
  The correct answer is A .
• Question 1074:

  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 1075:

  Digestive enzymes are responsible for

  Options:
  A) Breaking down food into smaller molecules
  B) Absorbing nutrients into the bloodstream
  C) Regulating the pH of the digestive tract
  D) Transporting food through the digestive system
  Show Answer
  The correct answer is A .
• Question 1076: Insect show consideration powers of water conservation. This is due to the fact that Options:
  A) The chitinous cuticle is impregnated with tanned protein
  B) Nitrogenous waste is eliminated as urea
  C) Chitin is impermeable to water
  D) The malpighian tubules are impermeable to water
  E) The curticle is covered with wax
  Show Answer
  The correct answer is C .
• Question 1077: Which enzymes are contained in the pancreatic juice? Options:
  A) Ptayalin, lipase and pepsin
  B) Maltase, erepsin and trypsin
  C) Renin, sucrase and lipase
  D) Amylase, lipase and trypsin
  Show Answer
  The correct answer is D .
• Question 1078: Which of the following features of euglena is found only in animals? Options:
  A) Paramylum granules
  B) Flagellum
  C) Pellicle
  D) Pyrenoid
  Show Answer
  The correct answer is C .
• Question 1079: The correct order in a food chain involving the organisms (1)Grasses, (2)Hawks, (3)Snakes, (4)Grasshopper, (5)Lizards is Options:
  A) 1 2 3 4 5
  B) 5 4 3 2 1
  C) 1 4 5 3 2
  D) 3 2 4 5 1
  Show Answer
  The correct answer is C .
• Question 1080:

  Ozone hole refers to

  Options:
  A) hole in ozone layer
  B) decrease in the ozone layer in troposphere
  C) decrease in thickness of ozone layer in stratosphere
  D) increase in the thickness of ozone layer in troposphere
  Show Answer
  The correct answer is C .