Last Updated：2025/12/30
Sentence
For
the
long-stalked
kelps
that
sway
in
dusky
forests
just
below
the
level
of
the
spring
tides,
survival
in
the
surf
zone
is
largely
a
matter
of
chemistry.
Their
tissues
contain
large
amounts
of
alginic
acid
and
its
salts,
which
create
a
tensile
strength
and
elasticity
able
to
withstand
the
pulling
and
pounding
of
the
waves.
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For the long-stalked kelps that sway in dusky forests just below the level of the spring tides, survival in the surf zone is largely a matter of chemistry. Their tissues contain large amounts of alginic acid and its salts, which create a tensile strength and elasticity able to withstand the pulling and pounding of the waves.
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