Underwater and in Space are the first two that come to mind. I guess you could also say firefighters will wear gas masks in burning buildings.
Horses have two nostrils,like humans. They are located on the muzzle, above their mouths.
fish breathe through their gills. frogs breathe through their legs while in water.
Yes, penguins have noses, but they do not have external nostrils like humans. Instead, penguins have nasal openings on their beaks that help them breathe while swimming and diving. These openings are covered by feathers to prevent water from entering.
Humans began walking on two legs, or bipedalism, primarily as an adaptation to environmental changes and the need for efficiency. This upright posture allowed early hominins to traverse open landscapes, see over tall grass for predators, and carry objects or children. Additionally, bipedalism freed the hands for tool use and manipulation, which played a crucial role in the development of human culture and technology. Overall, these factors contributed to the evolutionary advantages of walking on two legs.
The two most deadly spiders to humans are black widow spiders and tarantula.
The two phases of breathing are breathing in and breathing out. Humans breathe in oxygen and they release carbon dioxide when they breathe out.
i don't think humans breathe in any water but they do breath out water
above the mouth; there are two of them although the nostrils differ slightly from those of humans
Humans cannot breathe a combination of pure oxygen and hydrogen. Oxygen is necessary for respiration, but hydrogen is highly flammable and not suitable for breathing. Mixing the two gases is dangerous and can create a potential explosion hazard.
"Air" is the most important cycle that exists between the atmosphere and earth, e.g. a sustained cycle between plants on earth and the air we breathe, and humans. Air is important as a natural resource because we AND plants must breathe. Plants use carbon dioxide which humans breathe out. Humans breathe in oxygen, which plants give off. Without these two components of "air" or if these became out of balance, both plants and humans would die.
Jacques-Yves Cousteau and Emille Gagman
incorect but blood does run through your body but leaves.
You breathe from your nose because both your mouth and nose airway are connected. Making it possible to breathe two ways
Horses have two nostrils,like humans. They are located on the muzzle, above their mouths.
you breathing is out and in and that is the breathing is changes is
Yes
It is important to discuss two locations to describe the position of an object. The two locations helps us to best discuss the object.