最終更新日:2022/12/24
Oxygen levels on Earth skyrocketed 2.4 billion years ago, when cyanobacteria evolved photosynthesis: the ability to convert water and carbon dioxide into carbohydrates and waste oxygen using solar energy. The evolutionary precursor of photosynthesis is still under debate, and a new study sheds light.
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Oxygen
levels
on
Earth
skyrocketed
2.4
billion
years
ago,
when
cyanobacteria
evolved
photosynthesis:
the
ability
to
convert
water
and
carbon
dioxide
into
carbohydrates
and
waste
oxygen
using
solar
energy.
The
evolutionary
precursor
of
photosynthesis
is
still
under
debate,
and
a
new
study
sheds
light.