The name Constanza is of Spanish origin. The meaning of Constanza is steadfast. Constanza is generally used as a girl's name. It consists of 9 letters and 3 syllables and is pronounced Con-stan-za.
The above answers are quite right. The protein capsid of naked viruses is less susceptible to environmental conditions (lipid solvents, pH, temperature...) than enveloped viruses because the envelop is made in part of phospholipids. Once the envelop is lysed, the virus loses its functional receptors and is not still able to infect susceptible cells. ...
Many retroviruses, including HIV, are relatively fragile. Their ability to infect cells lessens after prolonged exposure to the environment outside a host cell. When retroviruses do infect a host cell, their mode of replication leads to frequent mutationsâchanges in the genetic makeup of viral offspring.These mutations enable viruses to evolve at a rapid rate.heir ability to infect cells lessens after prolonged exposure to the environment outside a host cell. When retroviruses do infect a host cell, their mode of replication leads to frequent mutationsâchanges in the genetic makeup of viral offspring. These mutations enable viruses to evolve at a rapid rate.