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.
After 24 hours, none. On nonporous surfaces, cold viruses don't fare as well -- probably no more than an hour or two and likely less than that. On skin, less than a few minutes -- it isn't an ideal surface for a virus that prefers a moist, warm, dark environment.Source(s): I'm a nurse.fter 24 hours, none. On nonporous surfaces, cold viruses don't fare as well -- probably no more than an hour or two and likely less than that. On skin, less than a few minutes -- it isn't an ideal surface for a virus that prefers a moist, warm, dark environment. Source(s): I'm a nurse.