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