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What is Living Thing _ It’s Meaning and Definition Any organism or a living.

What is Living Thing _ It’s Meaning and Definition Any organism or a living.

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 What is a Living Thing?

A living thing is any organism that exhibits the characteristics of life, such as growth, reproduction, metabolism, response to stimuli, and adaptation.

 Definition of Living Thing

Scientific Definition:
“A living thing is an organism that maintains homeostasis, undergoes metabolism, grows, adapts to its environment, reproduces, and responds to stimuli.”

Simple Definition:
“Anything that is alive, such as humans, animals, plants, and microorganisms, is called a living thing.”

 Characteristics of Living Things

Growth & Development – Increase in size and changes in structure.
Reproduction – Ability to produce offspring.
Metabolism – Chemical processes that sustain life.
Response to Stimuli – Reacts to the environment (e.g., plants bending toward sunlight).
Adaptation & Evolution – Changes over generations to survive.
Homeostasis – Maintains internal balance (e.g., body temperature).
Cellular Organization – Made up of one or more cells.

 Examples of Living Things

 Humans
 Animals (dogs, birds, fish)
 Plants (trees, flowers, grass)
 Microorganisms (bacteria, fungi, viruses*)

 (*Viruses are debated because they need a host to reproduce.)

 Conclusion

Living things are organisms that grow, reproduce, and respond to their environment. They are different from non-living things, which do not show these characteristics.

Would you like examples, diagrams, or a comparison with non-living things?

What is Living Thing _ It’s Meaning and Definition Any organism or a living.

Characteristics and classification of living organisms

Here’s a clear and simple explanation for:


What is a Living Thing?

Meaning and Definition


Definition:

A living thing is any organism that shows the basic characteristics of life, such as growth, movement, reproduction, response to stimuli, and metabolism.


Meaning:

Living things are beings that are alive. They carry out essential life processes that non-living things do not.


Scientific Definition:

“Living things are organisms that have the ability to grow, reproduce, maintain homeostasis, carry out metabolism, and respond to their environment.”


Examples of Living Things:

  • Humans
  • Animals (dogs, birds, fish)
  • Plants (trees, flowers, grass)
  • Microorganisms (bacteria, fungi, protozoa)

Characteristics of Living Things:

No. Characteristic Description
1 Growth Increase in size or cell number
2 Reproduction Ability to produce offspring
3 Metabolism Chemical reactions in the body (e.g., digestion)
4 Response to Stimuli Reacts to environment (e.g., light, touch)
5 Movement Internal or external motion
6 Excretion Removal of waste
7 Respiration Energy production from food
8 Adaptation & Evolution Changes over generations

Non-Living Things (for contrast):

  • Rocks
  • Water
  • Air
  • Chairs
  • Machines (even if they move or make sound)

Simple Trick to Remember:

MRS GREN” – Movement, Respiration, Sensitivity, Growth, Reproduction, Excretion, Nutrition


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What is Living Thing _ It’s Meaning and Definition Any organism or a living.

Living and non-living things