Question

Define life with suitable example biology

Answer 1

ife is the aspect of existence that processes, acts, reacts, evaluates, and evolves through growth (reproduction and metabolism). The crucial difference between life and non-life (or non-living things) is that life uses energy for physical and conscious development. Life is anything that grows and eventually dies, i.e., ceases to proliferate and be cognizant. Can we say that viruses, for example, are cognizant? Yes, insofar as they react to stimuli; but they are alive essentially because they reproduce and grow. Computers are non-living because even though they can cognize, they do not develop biologically (grow), and cannot produce offspring. It is not cognition that determines life, then: it is rather proliferation and maturation towards a state of death; and death occurs only to living substances.

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Answer 2

life is a characteristics that distinguishes physical entities that do 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 classified as inanimate. Various forms of life are plants, animals, fungi, bacteria etc.