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.
Viruses lack some characteristics of living organisms. Outside of living cells, viruses are not alive. Outside of the living cells, viruses cannot move, grow, or reproduce. Viruses require living cells called host cells to be alive.Ultimately, viruses act as parasites and harm or destroy their host cells.iruses are structurally simpler than regular cells. Outside of the host cells, viruses are inactive. However, inside living cells, viruses show some of the characteristics of living things. Viruses are not made up of cells.