Theory For Origin Of Life Flashcards
Theory of special creation was given by?
Father saurez
Special creation says the earth is how many years old?
4000 years old
Whicb theory states that units life called spores transferred to diff plants
Theory of panspermia
Theory of abiogenesis is called
Theory of spontaneous generation
Theory of biogenesis means?
Life comes from pre existing life
Which scientists proved theory of biogenesis
Spallanzani, reddi, louis pasteur
Theory of chemical evolution was given by?
Oparin from Russia and haldane from England
Theory of chemical evolution states?
Life comes from pre existing, non living molecules
Conditions on earth for chemical evolution?
High temp, volcanic eruptions, reducing atmosphere containing ch4 nh3
Experimental proof was given by who in which year?
Sl miller in 1953
Sl miller was nationality?
American
Temperature used by miller
800 c
Formation of what were observed?
Amino acids, sugars, nitrogen bases, pigment, fats
First non cellular forms of life appeared?
3 billion years back
First cellular did not possibly appear till
2 billion years back