Evolution Flashcards
changes in the floraandfauna occurin
million of year
stellar distance
1 Lightyear
B Big Ban theory is given by
Abbe Lemaitre
origin of universe
20 Billion years ago
origin of earth
4.5 billion year ago
orgen of life
5 Billion years ago
special creation theory tear about the conotation
- Alllife firms
- The diversity has same since creation and now
special creation theory tear about the conotation
- Alllife firms
- The diversity has same since creation and now
Ponspermia theory tells about
Origin of life is form from spores which come from astromer from another plannet
Sponstaneots generation theory
- life came from mud and decaying water
- for eg. Nile water mud fishes and crocodile are form
- pasture disapproved this abiogensis
- he perform a experiment in which he take two jar one jar has s necked tube at top and another is open and take sugar sypurp and killed yeast
- the flask which was open in that only life is form
- the conclusion was life exist from pre-existing life
Oparin haladane chemical evolution theory
- origin of life preceds from chemical evolution
- it is divided into tow theory
1. Atomic stage (4.5billion year)
H,C,N,O,Fe,Ar,He
2. Simple inorganic stages
Water vapour, carbondioxide , methane , ammonia
3 .simple organic stages
A..A N.B, glycerol , aldehyde , ketone , alcohol , monosacchride
4. Complex organic compound
Nucleic acid plyoscharride , lipids , fats - proteins form s chemical evolution with non structural and non enzymatic
- nuclei acid is non genomic and non repicable
Evidence in favour of chemical evolution
- 1953 madhe American scientists s.l Miller and horold urey created primitive earthconfition in lab
- took methane ammonia hydrogen gas in ratio 2:1:2 along with water
- 18 days nater Miller la bhatla Amino acid (alanine aspartic acid glycine)
And some other scientists got nitrogen bases ( fats , pigments , lipids , sugar,)
Metariote
In the universe some were life is forming
Origin of protobiotants
Pre biotic soup la aggregate karun probiotant form zale je non living simple mechanism and reproduction karta nahi
Origin of protobiotants
Pre biotic soup la aggregate karun probiotant form zale je non living simple mechanism and reproduction karta nahi