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 171: Which of the following causes pollution? Options:
  A) Consumption of canned drink
  B) The addition of fertilizer to farmland
  C) Respiration of living organism
  D) Burning of refuse
  Show Answer
  The correct answer is D .
• Question 172: They key event in the transition of the amphibians from water to land is the Options:
  A) replacement of the gills with lungs
  B) possession of webbed limbs
  C) development of long hing limbs
  D) possession of tympanic membrane
  Show Answer
  The correct answer is A .
• Question 173:

  Which of these combinations is common to plant and animal cells?

  Options:
  A) Centriole, middle lamella, golgi bodies, mitrochondrion
  B) Cytoplasm, sap, vacuole, starch grains, leucoplasts
  C) Plasma membranes, chromosomes, mitochondria, lysosomes.
  D) Nucleus, nucleolus, cellulose cell wall, endoplasmic reticulum
  E) Cytoplasm, centriole, cellulose cell wall, nucleolus
  Show Answer
  The correct answer is C .
• Question 174: A young plant showing yellow leaves is likely to be deficient in Options:
  A) calcium
  B) magnesium
  C) potassium
  D) boron
  E) molybdenum
  Show Answer
  The correct answer is B .
• Question 175:

  A freshwater plant such as water lily can solve the problem of buoyancy by the possession of?

  Options:
  A) aerenchyma tissues
  B) dissected leaves
  C) thin cell walls of the epidermis
  D) water-repelling epidermis
  Show Answer
  The correct answer is A .
• Question 176: Nitrifying bacteria are important because they Options:
  A) release nitrogen to the atmosphere
  B) convert atmospheric nitrogen to ammonia
  C) combine ammonia with nitrgen
  D) oxidize ammmonium salt to nitrates
  Show Answer
  The correct answer is D .
• Question 177: The hereditary characters in plants and animals are located on the Options:
  A) gene
  B) mucleus
  C) chromosome
  D) cell
  Show Answer
  The correct answer is C .
• Question 178: The hormone which tones up the muscles of a person in time of danger is from the Options:
  A) thyroid gland
  B) pancreas
  C) adrenal gland
  D) liver
  E) spleen
  Show Answer
  The correct answer is C .
• Question 179: The special pigment for colour change in chameleon is Options:
  A) melanin
  B) carotenoid
  C) chromatin
  D) chromatophore
  Show Answer
  The correct answer is D .
• Question 180: In which of the following species is the biomass of an individual the smallest? Options:
  A) Tilapia sp
  B) Agama sp
  C) Bufo sp
  D) Spirogvra sp
  Show Answer
  The correct answer is D .