2006-09-08 01:03:45 · 23 answers · asked by Chaitanya Shareef K 1 in Science & Mathematics ➔ Biology
We know that the smallest complete life forms on Earth are Uni-cellular Organisms. Much prior to that Virus should have existed. But it is a semi-life form. If suspended into the air, it can live infinitely as a particle can. But, once it enters a living cell, it hijacks the cell and starts producing its own replicas. But, it can't reproduce on its own. It doesn't have DNA. It has RNA.
RNA is perceived to be the first living form as it plays a very important role in managing DNA and also manufacturing Protein.
Finally, I personally opine that it is the Organizer Molecule which is the first living entity. It controls Regulatory RNAs, which in turn control gene expression.
2006-09-08 17:51:15 · answer #1 · answered by prasadrvr2001 1 · 0⤊ 0⤋
Cyanobacteria is probably correct. It's thought that bacteria first colonized the earth in the ocean depths near breaks in the crust where it was warm.
Adam and Eve don't belong in this section any more then politics do.
2006-09-08 10:49:14 · answer #2 · answered by Franklin 7 · 0⤊ 0⤋
i'm afraid that it must not have been a living "being" on the earth.as the first living material is protoplasm.the scientist stanley miller in 1953 produced amino ,fatty acids by taking Hydrogen,methane & ammonia in flask &continuously supplied steam.To the other side he fitted glass tube connected to condensor.he passed electric current through it . thus there are still chances of producing protoplasm.may be someone does that.but the first one to be formed under water must be a protozoan.
2006-09-08 08:32:53 · answer #3 · answered by trivs 2 · 1⤊ 0⤋
it is said that unicellular plant lives appeard first on the earth.followed by uncellular organisms .
2006-09-08 22:48:22 · answer #4 · answered by Infinity 7 · 0⤊ 0⤋
According to the scientists, most prop ably the first living being emerged from a single cell(living cell).... so any one of the prokaryotic(not fully developed) single cell organism was the first living being appeared in the world..
2006-09-08 08:12:18 · answer #5 · answered by Andy 2 · 1⤊ 0⤋
According to most credible Darwin's theory of evolution, it was single celled organism who were born under water from the warm currents which come out from under sea volcanoes & contain Carbon & other oganic substance....life was very different from & it took million of years to evolve the way it is now
2006-09-08 08:12:38 · answer #6 · answered by Ashish Samadhia 3 · 2⤊ 0⤋
First Eve and Then Adam
2006-09-09 05:58:23 · answer #7 · answered by dimplesoft 3 · 0⤊ 0⤋
If you not going the religious route. Science says it was a basic simple cell organism, a microbe.
2006-09-08 08:12:37 · answer #8 · answered by jatelf72 4 · 1⤊ 0⤋
the first life form was algae...they also say cockroaches are the oldest living creatures that still inhabit the earth
2006-09-08 08:11:19 · answer #9 · answered by payal b 2 · 0⤊ 1⤋
i think this is very difficult question to answer...
people might come up with the standard answers, but believe me in actual no one know what is the right answer.
2006-09-08 08:09:45 · answer #10 · answered by Hidimba 3 · 2⤊ 0⤋