The
Fibonacci
sequence
is
an
numerical
pattern
?
a
series
of
numbers
where
a
number
is
found
by
____________________
up
the
two
numbers
____________________
it
.
The
sequence
appears
in
many
settings
in
mathematics
and
in
other
sciences
.
Mathematicians
have
learned
to
use
Fibonacci
?
s
sequence
to
describe
certain
shapes
that
appear
in
____________________
.
These
shapes
are
called
____________________
____________________
,
and
Nautilus
____________________
are
one
example
.
You
also
see
logarithmic
spiral
shapes
in
spiral
____________________
,
and
in
many
____________________
such
as
sunflowers
.
Some
plants
branch
in
such
a
way
that
they
always
have
a
Fibonacci
number
of
growing
points
.
Flowers
often
have
a
Fibonacci
number
of
____________________
,
daisies
can
have
34
,
55
or
even
as
many
as
89
petals
.
It
was
described
by
Leonardo
____________________
,
____________________
mathematician
better
known
as
Fibonacci
,
who
also
popularized
Hindu
-
Arabic
____________________
____________________
in
Western
system
.
