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 101: 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 102:

  In genetic counseling, a man with hemoglobin formation HbAHbS is most preferred to marry a woman of?

  Options:
  A) HbA HbA
  B) HbC HbH
  C) HbM HbF
  D) HbS HbS
  Show Answer
  The correct answer is A .
• Question 103: The part of the mammalian digestive system where absorption of nutrient takes place is the Options:
  A) ileum
  B) colon
  C) oesophagus
  D) duodenum
  Show Answer
  The correct answer is A .
• Question 104:

  

  In the diagram, the part labelled IV indicated that the yeast population has

  Options:
  A) reached its maximum size
  B) reached senescence
  C) stopped metabolizing food
  D) started dying
  Show Answer
  The correct answer is A .
• Question 105: The anaerobic fermentation of a glucose molecule yields Options:
  A) 38 ATP molecules
  B) 2 ATP molecules and alcohol
  C) pyruvic acid and alcohol
  D) water and carbon (IV) oxide
  Show Answer
  The correct answer is B .
• Question 106: The behavioural adaptation in social insects could best be described as Options:
  A) symbiosis
  B) saprophytism
  C) parasitism
  D) commensalisms
  Show Answer
  The correct answer is A .
• Question 107: In typical predator food chain involving secondary and tertiary consumers, the organism become progressively Options:
  A) smaller and more numerous along the food chain
  B) equal in number and size along the food chain
  C) larger and fewer along the food chain
  D) parasitized along the food chain as consumers get bigger
  Show Answer
  The correct answer is C .
• Question 108:

  Trees in Savanna habitats usually have thick bark which mainly.

  Options:
  A) Reduces the rate of transpiration
  B) Protect them from scorching sun
  C) Protect them from heavy winds
  D) Resist bush fires
  Show Answer
  The correct answer is A .
• Question 109: Ability to taste PTC in some individuals is a character that is Options:
  A) acquired
  B) heritable
  C) sex-linked
  D) morphological
  Show Answer
  The correct answer is B .
• Question 110: Which of the following instruments is used to measure relative humidity? Options:
  A) Hydrometer
  B) Thermometer
  C) Hygrometer
  D) Anemometer
  Show Answer
  The correct answer is C .