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:

  

  Primary consumers are found in

  Options:
  A) 1, 2 and 3
  B) 1, 3 and 7
  C) 2, 3 and 7
  D) 2, 4 and 5
  Show Answer
  The correct answer is C .
• Question 102:

  Which of the following options best describes adaptation for survival in organisms?

  Options:
  A) Adaptation is the inherited trait that increases an organism's chances of survival and reproduction in its environment
  B) Adaptation is the process by which organisms acquire new characteristics during their lifetime
  C) Adaptation refers to the ability of an organism to change its environment to better suit its needs
  D) Adaptation involves the development of new traits in response to changes in the environment
  Show Answer
  The correct answer is A .
• Question 103:

  Which gland is responsible for producing the hormone insulin?

  Options:
  A) Thyroid gland
  B) Pituitary gland
  C) Pancreas
  D) Adrenal gland
  Show Answer
  The correct answer is C .
• Question 104: Which of the following statements gives the BEST description of bark? Options:
  A) Tissue outside the vascular cambium
  B) Cork-like tissue found only in stems
  C) Brown tissue never found in primary growth
  D) Cork-like tissues of old trees
  Show Answer
  The correct answer is B .
• Question 105: 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 106: In an agricultural ecosystem, the biotic component consists of Options:
  A) crop, pest and beneficial insects
  B) crops, temperature and humidity
  C) pests, beneficial insects and water
  D) crops, water and soil
  Show Answer
  The correct answer is A .
• Question 107: The structure found only in the plant cells are Options:
  A) cell membrane and cytoplasm
  B) chromatin and nucleolus
  C) cell wall and chloroplast
  D) cell membrane and lysosome
  Show Answer
  The correct answer is C .
• Question 108: Trace elements are required by plants mainly for the Options:
  A) formation of pigments and enzymes
  B) production of energy and hormones
  C) manufactured of carbohydrates
  D) manufacture of proteins
  Show Answer
  The correct answer is A .
• Question 109:

  In monohybrid inheritance, if an organism carries two different alleles for a particular gene, it is called:

  Options:
  A) Homozygous
  B) Dominant
  C) Heterozygous
  D) Recessive
  Show Answer
  The correct answer is C .
• Question 110: Which of the following relates to edaphic factors? Options:
  A) The structure of the earth's surface
  B) The influence of living organisms on each other
  C) Temperature, rainfall and humidity
  D) The influence of soils on plant and animals
  Show Answer
  The correct answer is D .