Rev Flashcards
1
Q
First’ organism which released O2 in environment
A
Cyanobacteria
2
Q
Free living unicellular eukaryotic organism originated about
A
1.5 billion years ago in primitive ocean
3
Q
Miller saw formation of amino acids
A
Glycine.
Alanine
Aspartic acid
4
Q
Universe originate
A
20 billion year ago
5
Q
Earth
A
4.5 billon
6
Q
First’ organic comp
A
Methane
7
Q
First’ inorganic comp
A
Water and ammonia
8
Q
Cellular form of life
A
2 bya
9
Q
First cellular form
A
2000 mya
10
Q
Invertebrates were formed
A
500mya
11
Q
Jawless fishes
A
350 mya
12
Q
See wead and few plants
A
320 mya
13
Q
Biggest dianosour
A
Tyrannosaurus
14
Q
Dianosour dissapera
A
65 mya
15
Q
Atavism / Reversion
A
Appearance of the extinct character
