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 631: During the dry season in the tropics, the body metabolism of some animals slows to a minimal level in a process referred to as Options:
  A) hibernation
  B) aestivation
  C) dormancy
  D) senescense
  Show Answer
  The correct answer is A .
• Question 632: In a food chain involving a primary producer, a primary consumer as well as a secondary consumer, the sharing of trophic energy is in the form that the Options:
  A) the primary consumer has more energy than the primary poducer
  B) secondary consumer takes up all the energy contents of the primary consumer
  C) energy is shared equally between the three groups of organism
  D) secondary consumer gets only a small portion of the energy contained in the primary producer
  Show Answer
  The correct answer is D .
• Question 633: The axial skeleton is found in the Options:
  A) skull, ribs, vertebral column and breast bone
  B) skull, humerus,vertebral column and ribs
  C) breastbone, clavicle, ribs and vertebral column
  D) femur, sternum,ulna and skull
  Show Answer
  The correct answer is A .
• Question 634: Which of the following insects has an incomplete metamorphosis during its life circle? Options:
  A) Butterfly
  B) Bee
  C) Mosquito
  D) House-fly
  E) Grasshopper
  Show Answer
  The correct answer is E .
• Question 635: The only vein that carriers pure oxygenated blood is the Options:
  A) renal vein
  B) pulmonary vein
  C) hepatic vein
  D) sciatic vein
  Show Answer
  The correct answer is B .
• Question 636:

  

  Use the diagram above to answer this question.

  Based on the shape and structure of the beak and feet, the bird represented is likely to feed mainly on

  Options:
  A) flesh
  B) fruits
  C) seeds
  D) nectar
  Show Answer
  The correct answer is A .
• Question 637:

  

  The structure labelled II is known as

  Options:
  A) sweat gland
  B) lymph vessel
  C) blood vessel
  D) nerve ending
  Show Answer
  The correct answer is B .
• Question 638: Which of the substance listed below is a trace element of plants? Options:
  A) Potassium
  B) Sodium
  C) Copper
  D) Phosphate
  E) Nitrate
  Show Answer
  The correct answer is C .
• Question 639:

  

  Which part of the twig produces auxins?

  Options:
  A) 4
  B) 3
  C) 2
  D) 1
  Show Answer
  The correct answer is D .
• Question 640: Water retention is highest in soils which are rich in Options:
  A) sand, poor in humus and devoid of clay
  B) clay and sand, but poor in humus
  C) clay and humus, but poor in sand
  D) clay, poor in humus and devoid of sand
  E) sand and humus, but poor in clay
  Show Answer
  The correct answer is D .