The
flea
feeds
on
blood
from
the
dog
.
There
is
no
benefit
to
the
dog
and
the
itching
and
bites
may
lead
to
infection
.
In
this
relationship
the
flea
____________________
while
the
dog
is
____________________
.
The
photosynthetic
algae
provide
food
for
the
fungus
,
which
in
turn
provides
a
suitable
living
environment
for
the
algae
.
In
this
relationship
,
the
fungus
____________________
,
while
the
algae
____________________
.
The
bacteria
in
the
gut
of
the
termite
breakdown
and
fed
on
some
of
the
cellulose
taken
in
by
the
termite
.
The
termite
would
be
unable
to
digest
cellulose
without
these
bacteria
and
they
gain
an
additional
source
of
nutrition
from
the
surplus
digested
cellulose
.
In
this
relationship
the
Termite
____________________
,
while
the
bacteria
____________________
.
The
Remora
fish
swim
alongside
the
shark
and
take
scraps
of
food
the
shark
drops
during
feeding
.
The
shark
does
not
eat
the
Remora
an
appears
unaffected
by
its
presence
.
In
this
relationship
the
Remora
____________________
while
the
Shark
is
____________________
.
The
cattle
egret
follows
herds
of
cattle
and
eats
the
insects
that
the
cattle
stir
up
as
they
move
through
the
grassland
.
The
cattle
ignore
the
egrets
and
they
do
not
seem
to
affect
the
cattle
.
In
this
relationship
,
the
Cattle
are
____________________
while
the
Egret
____________________
.
The
tapeworm
lives
in
the
small
intestines
of
where
it
feeds
and
grows
,
robbing
its
host
of
essential
nutrients
.
In
this
relationship
,
the
host
is
____________________
,
while
the
tapeworm
____________________
.
