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 11: Which of these is not an enzyme? Options:
  A) Pepsin
  B) Gastrin
  C) Amylase
  D) Chymotrypsin
  E) Trypsin
  Show Answer
  The correct answer is B .
• Question 12: An insect with a mandibulate mouth part will obtain its food by Options:
  A) biting and chewing
  B) chewing and sucking
  C) chewing
  D) sucking
  Show Answer
  The correct answer is A .
• Question 13: insectivorous plants traps and kill their prey to derive Options:
  A) phosphorous
  B) calcium
  C) nitrogen
  D) zinc
  Show Answer
  The correct answer is C .
• Question 14:

  A pollutant that is mostly associated with acid rain is

  Options:
  A) Nitrogen (IV) oxide
  B) Ozone
  C) Flourine
  D) Carbony (IV) oxide
  Show Answer
  The correct answer is A .
• Question 15:

  Blood circulation in a mammal is said to be double because?

  Options:
  A) it passes twice through the heart in a complete circuit
  B) it moves in both arteries and veins
  C) it circulates in both the heart and other organs
  D) the heart contains auricles and ventricles
  Show Answer
  The correct answer is A .
• Question 16: In Nigeria, the guinea savanna belt borders the Options:
  A) mangrove swamps and the sahel savanna
  B) rainforests and the sudan savanna
  C) desert and the sudan savanna
  D) rainforests and the deserts
  Show Answer
  The correct answer is B .
• Question 17:

  A boy who is fond of swimming in a pond finds himself passing urine with traces of blood. He is likely to have contracted

  Options:
  A) schistosomiasis
  B) onchocerciasis
  C) poliomyelitis
  D) salmonellosis
  Show Answer
  The correct answer is A .
• Question 18:

  Aged erythrocytes are destroyed in the?

  Options:
  A) pancreas
  B) liver
  C) lymph nodes
  D) kidney
  Show Answer
  The correct answer is B .
• Question 19: One advantage of variation in a species population is that individuals Options:
  A) with favoured traits become dominant
  B) easily reach their reproductive age
  C) are easily recognised by mates
  D) are better adapted to changes
  Show Answer
  The correct answer is A .
• Question 20: The barrier between maternal and foetal blood is the Options:
  A) placenta
  B) liver
  C) umbilical chord
  D) uterine wall
  Show Answer
  The correct answer is A .