The mane of the adult male lion, unique among cats, is one of the most distinctive characteristics of the species. It may provide an excellent intimidation display; aiding the lion during confrontations with other lions.
Answer 3: Viruses are not considered alive because they lack many of the properties that scientists associate with living organisms. Primarily, they lack the ability to reproduce without the aid of a host cell, and don't use the typical cell-division approach to replication.nswer 3: Viruses are not considered alive because they lack many of the properties that scientists associate with living organisms. Primarily, they lack the ability to reproduce without the aid of a host cell, and don't use the typical cell-division approach to replication.
Nontuberculous Mycobacteria. Nontuberculous mycobacteria (NTM) is a group of bacteria, normally found in soil and water and some domestic and wild animals, that can cause severe lung disease.TM does not cause tuberculosis (TB), and unlike TB, which is spread from person to person, NTM is not contagious. Diagnosing NTM can be difficult because symptoms may be similar to other lung conditions. Pulmonologists (lung specialists) in the UCSF Chest Clinic are experts at diagnosing and treating the disease.