historyjava
Senin, 20 Desember 2010
Plants begin to grow
plants
begin to
grow
from
430
million
years
ago
.
The transition
from
sea to
land
plant
evolution
is
a
difficult
challenge
.
They
use the
vascular
system
such as
tissue
-shaped
tube
for
transferring
water
and
nutrients to the
land
.
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