No you need a heart and a brain too...
lungs and muscles
100%
To protect the internal organs (such as the hearth and lungs) from damage.
Yes. Cows are much larger than humans are, thus need more oxygen to take in in order to function.
because they don't breath like humans
Because you need them to live.
we humans need to breath so dose cars their air filter is our lungs.
Whales need to breathe air because they are mammals, like humans, and require oxygen to survive. Even though they live in water, they have lungs and need to come to the surface to breathe.
Humans need oxygen to breathe. During respiration, oxygen is taken in and carbon dioxide is released. The respiratory system includes the lungs, diaphragm, and respiratory muscles to support this process.
Food
Mars is no place for a human being. There is no breathable oxygen and no water, which are both things that humans need to survive.
Because we have lungs, not gills.Humans need oxygen to live.