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 621: Blood clotting is initiated by Options:
  A) Leucocytes
  B) Platelets
  C) Haemolymph
  D) Haemoglobin
  E) Erythrocytes
  Show Answer
  The correct answer is B .
• Question 622:

  Which of the following is most advanced in the evolutionary trend of animals?

  Options:
  A) Liverfluke
  B) Earthworm
  C) Snail
  D) Cockroach
  Show Answer
  The correct answer is D .
• Question 623: Which of the structure listed below is peculiar to the axis vertebra? Options:
  A) Odontoid process
  B) Anterior zygapophysis
  C) Posterior zygapophysis
  D) Lateral spine
  E) Centrum
  Show Answer
  The correct answer is A .
• Question 624: Thyroxine and adrenalin are examples of hormones which control Options:
  A) blood grouping
  B) tongue rolling
  C) behavioural patterns
  D) colour variation
  Show Answer
  The correct answer is C .
• Question 625: Which of the following statements about the rate of transpiration is INCORRECT? It is Options:
  A) Dependent on temperature
  B) Affected by changes in light intensity
  C) Unaffected by humidity
  D) Dependent on air movement
  E) Affected by availability of water
  Show Answer
  The correct answer is C .
• Question 626: An example of plant adaptation to a xerophytic environment is represented by the development of Options:
  A) fleshy tissue and reduced leaves
  B) broad canopy and extensive surface root system
  C) thick barks and broad leaves
  D) rough leaves and shallow root system
  Show Answer
  The correct answer is A .
• Question 627:

  Which of the following diseases is not hereditary?

  Options:
  A) Albinism
  B) Scabies
  C) Haemophilla
  D) Colour blindness
  Show Answer
  The correct answer is B .
• Question 628:

  The study of an individual organism or a single species of organism and its environment is

  Options:
  A) Artecology
  B) Ecological concepts
  C) Synecoloy
  D) Biotic composers
  Show Answer
  The correct answer is A .
• Question 629: Organisms I, II, III and IV have surface/volume ratios of 1:2, 1:3, 1:4 and 1:5 respectively. The organism that is likely to have the most complex transport system is Options:
  A) IV
  B) III
  C) I
  D) II
  Show Answer
  The correct answer is A .
• Question 630: The recycling method of solid waste disposal is unsuitable for Options:
  A) organic matter
  B) glass
  C) plastic
  D) metal scraps
  Show Answer
  The correct answer is A .