A
Food
____________________
is
a
series
of
steps
in
an
ecosystem
in
which
organisms
transfers
energy
and
matter
by
eating
and
being
eaten
.
However
,
a
group
of
____________________
food
chains
connected
together
in
an
ecosystem
is
known
as
a
Food
____________________
.
Producers
are
a
possible
____________________
to
the
food
chain
and
are
in
the
____________________
trophic
level
of
an
energy
pyramid
.
Primary
consumers
eat
the
producers
to
get
energy
and
is
in
the
____________________
trophic
level
of
the
energy
pyramid
.
____________________
consumers
eat
herbivores
to
get
energy
and
is
in
the
third
trophic
level
of
the
energy
pyramid
.
Finally
,
eating
carnivores
or
____________________
to
get
energy
and
is
in
the
fourth
energy
level
are
the
____________________
consumers
.
The
different
feeding
positions
in
a
food
chain
or
web
are
known
as
the
____________________
levels
.
During
this
transaction
only
____________________
percent
of
energy
is
passed
when
one
organism
eats
another
in
the
next
trophic
level
and
____________________
percent
is
lost
due
to
using
energy
for
living
,
unusable
heat
loss
,
and
____________________
.
