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 1:

  What is the primary function of the liver in the human body?

  Options:
  A) Regulation of body temperature
  B) Regulation of blood pressure
  C) Production of hormones
  D) Detoxification and metabolism of nutrients and drugs
  Show Answer
  The correct answer is D .
• Question 2: Mendel's second law of inheritance states that Options:
  A) alleles combine randomly
  B) alleles segregates independently
  C) alleles seperate predictably
  D) chromosomes segregates independently
  Show Answer
  The correct answer is B .
• Question 3: The pancreatic juice contains the enzymes amylopsin, Options:
  A) pepsin and trpsinogen
  B) rennin and steapsin
  C) steapsin and trypsinogen
  D) steapsin and ptyalin
  Show Answer
  The correct answer is C .
• Question 4: The dental formula of a i(3/3); c(1/1); pm(4/4; m(2/3) = 42 represent that of a Options:
  A) rabbit
  B) full grown man
  C) young child
  D) dog
  E) sheep
  Show Answer
  The correct answer is D .
• Question 5:

  

  In the diagram, The economic importance of the larva is that it

  Options:
  A) is eaten by birds
  B) develop into a moth
  C) resembles the plant on which it lives
  D) feeds on the leaves of crops
  Show Answer
  The correct answer is D .
• Question 6: Toads and lizards in an ecosystem depend on a limited quantity of food. This is an example of Options:
  A) parasitism
  B) intraspecific competition
  C) predation
  D) interspecific competition
  Show Answer
  The correct answer is D .
• Question 7: Fibrinogen and prothrombin play important roles in the Options:
  A) deamination of proteins
  B) clotting of blood
  C) detoxication of substances
  D) storage of vitamins
  Show Answer
  The correct answer is B .
• Question 8: External ears of mammals consist of Options:
  A) pinna and tympanum
  B) pinna only
  C) auditory meatus only
  D) auditory meatus and pinna
  E) auditory meatus and tympanum
  Show Answer
  The correct answer is D .
• Question 9: The depth of illumination in a water body can be measured with a Options:
  A) photometer
  B) secchi disc
  C) hydrometer
  D) anemometer
  Show Answer
  The correct answer is B .
• Question 10: Which of the following statements is NOT true of insectivorous plants? Options:
  A) They obtain part of their food by trapping and feeding on insects
  B) They attract insects simply because of pollination
  C) Thay can grow in soils poor in nitrogenous salts
  D) They can supplement their nitrgen supply by feeding on insects
  E) Example include butterworts, sundews and pitcher plants
  Show Answer
  The correct answer is B .