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Astrobiology and exobiology are fields of science that include the search for life beyond Earth, and the possible effects of extraterrestrial environments on living things. There has been no confirmed evidence of life existing beyond the Earth as of 2013.
it does......
We have not yet found concrete evidence of life beyond Earth. However, given the vast number of planets in the universe and the increasing discoveries of habitable environments, the possibility of other life forms existing is certainly plausible. Future missions and technological advancements may shed more light on this intriguing question.
Earth is the planet with the most life forms.
all life-forms are located in the biosphere
The question "is water compulsory for all life forms"is not specific,all life forms known to man today requires some amount of the compound H2O or water for their cell structures. while this is true there may be unknown life forms existing in other celestial bodies.The significance of life on other planets is expressed by the formation of exobiology or the study of life on other bodies outside Earth.
Unicellular plants and animals were first forms of life on Earth
People come to know about life existing on planet Earth in the past by studying bones and fossils. These are kept in a databse and are studied by scientists.
Answ2. Yes there are life forms in earth. worms, insects and bacteria. In the Antarctic, they have even found life-forms inside what appears to be solid rock.
Is it exobiology
Nova - 1974 Finding Life Beyond Earth - 39.3 was released on: USA: 19 October 2011
Life has been found just about anywhere on Earth.