Agriculture & Biology
carbon isotopes
66%
coevolution
62%
autotrophs
42%
organic carbon
40%
carbon
36%
rocks
36%
Earth atmosphere
32%
carbon dioxide
29%
isotope fractionation
26%
inorganic carbon
24%
biosphere
22%
primary productivity
22%
carbon metabolism
21%
preserves
17%
enzymes
16%
bioactive properties
16%
biochemical pathways
15%
ecosystems
14%
Biological Sciences
13%
microorganisms
12%
Earth & Environmental Sciences
coevolution
70%
carbon isotope
39%
carbon
31%
innovation
24%
enzyme
22%
organic carbon
21%
transition
17%
inorganic carbon
16%
oxygenation
16%
biological activity
14%
machinery
14%
biosphere
14%
fixation
13%
rock
13%
primary production
13%
turnover
12%
planet
12%
preserve
12%
isotopic composition
12%
metabolism
11%
fractionation
11%
microorganism
10%
science
9%
atmosphere
8%
ecosystem
8%
need
7%
laboratory
7%
material
5%
effect
3%
Medicine & Life Sciences
Carbon Isotopes
100%
Carbon
55%
Planets
28%
Biological Science Disciplines
23%
Atmosphere
21%
Ecosystem
20%
Enzymes
20%
Metabolic Networks and Pathways
18%