Question

What criteria do we use to decide something is alive?

Answer 1

Characteristics of living organisms:

1. The key factors for determining whether something is alive are breathing, respiration, transportation, and excretion.
2. A few other elements, such as growth and mobility in living beings, are also crucial.
3. Some of the characteristics are not visible to naked eyes like metabolism, cellular growth, and transportation.
4. In plants, the growth and movements are slow when compared to animals.
5. If the organism does not show any of the above-listed characters it is considered as dead.