Life Itself: Its Origin and NatureA basic book about biology, the origin of life, and the origin of man. |
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Page 18
... fossils with hard parts 2- 5- 3- 10- 4- The first Eukaryotes The Age of the Prokaryotes The first fossil cells - Formation of the Solar System The Prokaryotes are the bacteria and the blue - green algae The Eukaryotes are all the rest.
... fossils with hard parts 2- 5- 3- 10- 4- The first Eukaryotes The Age of the Prokaryotes The first fossil cells - Formation of the Solar System The Prokaryotes are the bacteria and the blue - green algae The Eukaryotes are all the rest.
Page 38
... fossils " from these very early times . Minerals can be much more stable , at least on a somewhat coarser scale , mainly ... fossil record at all , because no preserved parts of the sedimentary rocks from that time have yet been found ...
... fossils " from these very early times . Minerals can be much more stable , at least on a somewhat coarser scale , mainly ... fossil record at all , because no preserved parts of the sedimentary rocks from that time have yet been found ...
Page 144
... fossil record or of the early evolutionary trees de- duced from the study of present - day molecules . The earlier fossils , so far , do indeed resemble the blue - green algae . They date to a relatively early time in the life of the ...
... fossil record or of the early evolutionary trees de- duced from the study of present - day molecules . The earlier fossils , so far , do indeed resemble the blue - green algae . They date to a relatively early time in the life of the ...
Contents
Times and Distances Large and Small | 19 |
The Cosmic Pageant | 29 |
The Uniformity of Biochemistry | 37 |
Copyright | |
11 other sections not shown
Common terms and phrases
amino acids asteroid atmosphere atoms bacteria Big Bang billion years ago CALIFORNIA carbon cell chance chemical reactions common compounds copied detail difficult Directed Panspermia distance DNA replication double helix easy energy environment enzymes ERSITY especially eukaryotes evolution evolved exactly fairly favorable fossil galaxy gene genetic code Hâ‚‚ happened higher hydrogen idea journey large numbers least Leslie Orgel LIBRARY light light-years living system mechanism messenger RNA microorganisms mitochondria molecular natural selection nitrogen nuclear nucleic acid oceans orbit organic molecules Orgel origin oxygen particular Perhaps planetary systems polypeptide chain possible prebiotic present primitive earth probably problem produced prokaryotes radiation rare event reason replication RNA molecules rocket SAN DIEGO scale seems simple small molecules solar system soup space spaceship speed stars started structure suitable planet surface temperature theory thousand tion tRNA UNIV universe unlikely