Question

describe the conditions on Earth billions of years ago.
summarize theories of how life began on Earth.
describe the relationship between organic compounds, nucleotides, RNA, and a universal genetic code.
explain the connection between the beginning of life and the universal genetic code of almost all organisms.

Answer 1

the conditions on early Earth, some three to four billion years ago, are thought to be much different from what they are today. To begin with, the astronomical phenomenon called “the big bang” is defined by a theory proposing that the earth was one of the larger particles that coalesced after the initial universe explosion, or big bang, that spewed all the particles in the universe away from a central point and destined them to slowly revolve around that point.

Answer 2

Life started when Earth started to cool down, roughly 3.8 billion years ago. This is approximately 0.65 billion years after Earth was believed to have been formed

Answer 3

for more information,plz go to
http://www.quora.com/How-did-life-begin-on-Earth
question2

Answer 4

@Nicholette2

Answer 5

nice summary i appreciate for this @mayankdevnani

Answer 6

thank you for the help on my notes :) appreciate it @mayankdevnani

Answer 7

thnx... @henna @Nicholette2