(a) What criteria can be used to decide whether something is alive?
(b) What is meant by life processes? Name the basic life processes common to all living organisms which are essential for maintaining life.


(a) The criteria that can be used to decide whether something is alive is the movement. Movement of body parts like walking, breathing, or growing can be used to determine if something is alive or not.
(b) The basic functions performed by living organisms to maintain their life on this earth are called life processes.
The basic life processes common to all living organisms are: 
  • Nutrition and Respiration
  • Transport and Excretion
  • Control and Coordination
  • Growth
  • Movement 
  • Reproduction.

Updated on: 27-Mar-2023

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