what crystals do we used to declare whether something is alive
Answers
Answer:
when objects grow over time , we know they are alive some will say. in other words we tend to think some sort of movement either growth related or not, as common evidence for being alive. but a plant that is not visibly growing is still alive. so using visible movement for defining the characteristic of life is not enough. Movements over very small scales is not visible to the naked eye. This invisible movement is necessary for determining life as the professional biologists would say the same. In fact, viruses do not show any molecular movement. They only show this movement in the host body. Hence, there is a controversy over the fact that viruses are alive or not.
The main criteria used to decide whether something is alive are breathing and respiration . However , living beings also show growth and movement .