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 81: Which of the following organisms has lost the pentadactyl limb structure? Options:
  A) Bat
  B) Fish
  C) Frog
  D) Pigeon
  Show Answer
  The correct answer is C .
• Question 82:

  The process in which plant uses sunlight to synthesize nutrients from carbon dioxide and water is called

  Options:
  A) Locomotion
  B) Homeostasis
  C) Transpiration
  D) Photosynthesis
  Show Answer
  The correct answer is D .
• Question 83: 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 84: Which of these products obtained from analyzing sweat from skin is not an excretory product? Options:
  A) water
  B) Salts
  C) Dust
  D) Urea
  E) Urates
  Show Answer
  The correct answer is C .
• Question 85:

  The insects in which the maxillae are modified into a long coiled proboscis is

  Options:
  A) housefly
  B) butterfly
  C) mosquito
  D) grasshopper
  Show Answer
  The correct answer is B .
• Question 86: The radicle of a bean seedling grows most rapidly in the region Options:
  A) of the root tip
  B) just above the root tip
  C) just around the root tip
  D) just below the root tip
  Show Answer
  The correct answer is B .
• Question 87:

  

  The process by which water moves from X to Y through the semi-permeable membrane is called
  Options:
  A) diffusion
  B) osmosis
  C) active diffusion
  D) osmoregulation
  Show Answer
  The correct answer is B .
• Question 88: What would happen to a man whose pancreas has been surgically removed? Options:
  A) The level of blood sugar would increase
  B) The glycogen content of the liver would increase
  C) His blood pressure would decrease
  D) His weight would increase appreciably
  Show Answer
  The correct answer is A .
• Question 89: The movement of plant in response to external stimulus of no particular direction is Options:
  A) taxism
  B) tropism
  C) hyptotropic movement
  D) nastic movement
  E) phototropism
  Show Answer
  The correct answer is D .
• Question 90: In the kidney, both useful substances and wastes are removed from the blood by Options:
  A) Filtration
  B) selective absorption
  C) dialysis machine
  D) excretion
  Show Answer
  The correct answer is A .