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Keeping Healthy ­ Biology Core science

Di
et
a nd
exercise

A
heal
thy
diet
cont
ains
the
ri
ght
bal
ance
of
the
dif
fer
ent
f
oods
you
need
and
the
ri
ght
amount
of
ener
gy.


Carbohydrat
es
Fat
s
Prot
eins


Are
used
by
the
body…

Page 2

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l
ead t
o r
icket
s,
which
aff
ect
s t
he
proper
gr
owth
of
the
skel
eton.
Type
2 di
abet
es
is
al
so
a pr
obl
em
r
elat
ed t
o poor
diet
.


Note that you do not need to know how the…

Page 3

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Met
abol
ic
R at
e

Respir
ati
on i
s a
chemical
r
eacti
on
that
al
lows cel
ls
to
rel
ease
energy
fr
om food.
The
metabol
ic
rat
e i
s t
he
speed
a t
whi
ch such
chemical
r
eact
ions
take
place i…

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