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 191: The colour of the ventral surface of a fish is lighter than that of the dorsal. This is mainly Options:
  A) an adaptation for movement
  B) an adaptation for camouflage
  C) for attracting mates
  D) for regulating body temperature
  Show Answer
  The correct answer is B .
• Question 192: Which of the following statement is NOT correct with respect to inhalation in mammals? The Options:
  A) intercostal muscles contract
  B) diaphragm is raised
  C) ribs are raised
  D) Pressure of the thoracic cavity decreases
  Show Answer
  The correct answer is B .
• Question 193: Which of the following structures is common to Euglena, white blood cell and Amoeba? Options:
  A) Vacuole
  B) Cell wall
  C) Cilia
  D) Cell membrane
  Show Answer
  The correct answer is D .
• Question 194:

  Which of the statements below is not characteristic of wind-pollinated flowers?

  Options:
  A) Stigmas are usually large and feathery
  B) Nectary is usually absent
  C) The pollen grains have rough spiny surfaces
  D) The flowers are not scented.
  Show Answer
  The correct answer is C .
• Question 195: Green plants are important in the ecosystem because they are Options:
  A) primary consumers
  B) producers
  C) decomposers
  D) secondary consumers
  E) scavengers
  Show Answer
  The correct answer is B .
• Question 196:

  An ecological instrument used to measure wind direction is?

  Options:
  A) Secchi disc
  B) wind vane
  C) anemometer
  D) slope gauge
  Show Answer
  The correct answer is B .
• Question 197: If a woman's genotype is Tt Qq Rr, what would be the gene content of her eggs? Options:
  A) TQr, tqr
  B) TQR, tqr
  C) TqR, tQr
  D) tQr, TQR
  Show Answer
  The correct answer is B .
• Question 198: Which of the following lists of diseases, their causes and transmission is CORRECT? Options:
  A) Cholera, virus, severe diarrhoea, infected water
  B) Malaria, protozoan, high fever, contact with infected person
  C) Syphilis, virus, veneral disease, sexual intercourse
  D) small pox, virus, skin with blister, close contact with infected person
  E) Sleeping sickness, bacteria, tiredness, headache and dozing, tsetsefly bite
  Show Answer
  The correct answer is D .
• Question 199: The micro-organisms that causes Typhoid disease is Options:
  A) trypanosome gambiense
  B) Salmonella typhi
  C) entamocbahistolytica
  D) plasmodium sp
  Show Answer
  The correct answer is B .
• Question 200: The theory of natural selection was developed by Options:
  A) Lamarck and Darwin
  B) Darwin and Wallace
  C) Wallace and Mendel
  D) Mendel and Larmack
  Show Answer
  The correct answer is B .