Because they each do different things for the body for instance, your heart keeps blood pumping round your body and without it you would die.
Please reply if you found this helpful.
To keep us alive and keep us warm
Love Will Keep Us Alive was created in 1994-11.
Volcanoes do not keep us alive. Many thousands of people have died in volcanic eruptions.
to keep us alive
to keep us alive
xxxxxxxxxxxxgfrtyuht5ywh brythhfjhfybgfxdfftywee45ttrg
To keep you alive, and to keep us to be healthy.
No mountins do not keep us alive moutins are caused under the earths crust when 1 plate goess over the other plate
A fishes liver keeps the fish alive.
by making fresh water.
You need to take care of living things around you such as plants to keep them alive and keep us alive they give us oxygen.
Because just like us they are living, breathing animals. That's like saying why sould we try to keep humans alive. Just like the manatee we can't go extinct. Because then their would be none of us left. That's why we need to keep manatees alive.. ? ;)