Question

What is Life?☺☺☺☺✌✌✌✌​

Answer 1

Answer:

Life is a characteristic that distinguishes physical entities that have biological processes, such as signaling and self-sustaining processes, from those that do not, either because such functions have ceased, or because they never had such functions and are classified as inanimate

There is currently no consensus regarding the definition of life. One popular definition is that organisms are open systems that maintain homeostasis, are composed of cells, have a life cycle, undergo metabolism, can grow, adapt to their environment, respond to stimuli, reproduce and evolve. However, several other definitions have been proposed, and there are some borderline cases of life, such as viruses or viroids.

Abiogenesis is the natural process of life arising from non-living matter, such as simple organic compounds. The prevailing scientific hypothesis is that the transition from non-living to living entities was not a single event, but a gradual process of increasing complexity. Life on Earth first appeared as early as 4.28 billion years ago, soon after ocean formation 4.41 billion years ago, and not long after the formation of the Earth 4.54 billion years ago. The earliest known life forms are microfossils of bacteria. Researchers generally think that current life on Earth descends from an RNA world,although RNA-based life may not have been the first life to have existed.The classic 1952 Miller–Urey experiment and similar research demonstrated that most amino acids, the chemical constituents of the proteins used in all living organisms, can be synthesized from inorganic compounds under conditions intended to replicate those of the early Earth. Complex organic molecules occur in the Solar System and in interstellar space, and these molecules may have provided starting material for the development of life on Earth.

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Answer 2

Answer :-

The condition that distinguishes living organism from non living objects is called life.

It is expressed through certain features like reproduction, growth metabolism, response to stimulus, ability to adjust with the changing environment etc.

The basic properties of living things are :-

1] Reproduction - Every living organisms reproduce to maintain its race.

2] Growth - A living organism must exhibit growth and development in due course of time.

3] Metabolism - Different metabolic activities like nutrition, respiration, excretion etc. must take place in a living organism.

4] Response to a stimuli - A living organism must respond to any external or internal stimulus.

5] Adaptibility - A living organism must try to adjust itself with the changing environment.