humans don't need meat to live they can survive off of plants but would be very weak. meat gives you the protein that your body needs.
Beavers meet their needs by giving themselves shelter to live in.
Food
oxygen
We can not live with out trees
In order to live.
No you need a heart and a brain too...
For the exact same reason we humans need air: to live.
Well the things that humans do need are water/food safety shelter that's all what we really need.
In humans, they meet in the Fallopian tubes.
Yes They do,Most Dogs Have it, But They Need It For The Same Reasons Humans Do.... So They Can Live
Because in soil, plants grow and we eat those plants.
Because we definitely need one to live on and work on.