The human brain not considered to be a living organism because is doesn't have many qualifications that are need to stay alive. For example it does not repoduce or feed on anything. Unlike humans that are living do.
Hi
It's pretty easy: 1.<span>Inhalation is the process of taking air into the lungs. For this to occur, the air pressure inside the lungs must be lower than that of the external atmosphere as air flows from areas of higher pressure to lower pressure.
2.Exhalation is the process of expelling air out of the lungs. For this to occur, the air pressure inside the lungs must be higher than that of the external atmosphere as air flows from areas of higher pressure to ones of lower pressure. </span>
The correct option is C.
Obligate anaerobes are micro organisms that are poisoned and killed when exposed to the normal atmospheric oxygen concentration. These organisms can only survive in the absences of oxygen, therefore, they carry out only anaerobic form of respiration in order to obtain the energy that they need. <span />
An abnormality of the lymphatic system that is represented by injuries that are thin walled cysts.
In more simplistic terms, lymphangioma is an injury within the lymphatic system that is shown by thin walled cysts.
Hope this helps!