Download How do living things take in nutrients, breathe, and

how Do living things take
in nutrients, breathe,
and eliminate waste
Most Living
Things need
Oxygen
Humans, animals
and plants share
many of the same
needs. They have
the structure they
need to take in the
air they need to
live. However,
unlike plants,
animals and
humans take in
oxygen.
Most Living
Things need
Oxygen
Many animals and humans
that live on land get
oxygen by breathing air.
However, some animals
get oxygen in different
ways. Insects, for example,
get oxygen through tiny
holes in their bodies.
Many water animals, such
as fish, get oxygen from
the water. Other water
animals, like whales and
hippos, rise to the surface
of the water to breathe air.
What happens if the
air is polluted? How
does this affect living
things?
Living Things
need Water
Did you know that
more than half of
your body is
water? Every day,
water leaves your
body in your
breath, in your
sweat, and you
urine. To be
healthy, you must
drink to replace
your water.
Living Things
need Water
Other humans
and animals get
water mainly
from the foods
they eat.
What happens if the
water is polluted?
How does this affect
living things?
Living Things
need Food
Plants, humans
and animals need
food to live and
grow. Animals,
however, can’t
make their own
food. They must
get food by eating
plants and other
animals.
Living Things
need Food
Animals have body
parts that help
them get food. For
example, an
elephant uses its
trunk to pull leaves
from trees, a
pelican has a large
bill that helps it
catch fish and etc.
Living Things
need Shelter
Think about yourself
on a stormy day. How
do you stay warm and
dry? Like other
animals you seek
shelter—at home or in
another safe place.
Shelters aren’t just
homes. Shelter help
protect animals and
humans from weather
and from other
humans and animals.
Animal
Shelters
There are many kind
of animal shelters.
Some birds build nest
from twigs, grass and
mud above the ground
where other animals
can’t bother their
young. Beavers build
shelters called lodges
from mud and wood.
Other animals, such as
rabbits and moles,
make burrows in the
ground.