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 161: the part of the stomach nearer the gullet is called th Options:
  A) epiglottis
  B) cardiac spincter
  C) duodenum
  D) pyloric sphincter
  Show Answer
  The correct answer is B .
• Question 162: Bacteria in the large intestine of man are important in the Options:
  A) synthesis of vitamins K and B₂
  B) digestion of vegetables
  C) synthesis of vitamins A and D
  D) absorption of water
  Show Answer
  The correct answer is A .
• Question 163: Nervous control differs from hormonal control in that the former Options:
  A) involves only chemical transmision
  B) is a lower process
  C) produces short-term changes
  D) has no specific pathway
  Show Answer
  The correct answer is C .
• Question 164:

  Which of the following is not a transmitable character in plants

  Options:
  A) Habit of growth
  B) Resistance to environmental factors
  C) Life span
  D) Haemophilia
  Show Answer
  The correct answer is D .
• Question 165: In spite of the removal of carbondioxide from the atmosphere, its amount remains more or less constant because Options:
  A) it is produced by green plants during photosynthesis
  B) it is produced during respiration of animals
  C) it is absorbed inn ocean water
  D) green plants release it during the day
  Show Answer
  The correct answer is B .
• Question 166: Atmospheric nitrogen is converted to soil nitrogen for plant use by Options:
  A) nitrification and combustion
  B) putrefaction and lightning
  C) lightning and nitrification
  D) combustion and putrefaction
  Show Answer
  The correct answer is B .
• Question 167: Rodents gnaw on food with their Options:
  A) molar teeth
  B) strong jaws
  C) flat-ridged teeth
  D) chisel - like front teeth
  Show Answer
  The correct answer is D .
• Question 168: 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 .
• Question 169: Which of the following characters is NOT sex-linked? Options:
  A) River blindness
  B) Baldness
  C) Haemophilia
  D) Colour blindness
  Show Answer
  The correct answer is A .
• Question 170: Plants that have special devices for trapping and digesting insects are Options:
  A) carnivorous
  B) symbiotic
  C) parasitic
  D) saprophytic
  Show Answer
  The correct answer is A .