In the lytic cycle The virus stay in the system causes a fever by
attacking the brain (lyses)
The virus invades cells, uses cell resource to
reproduce until the cell explodes (lyses

What's the question

Explanation:

stratosphere: as the altitude increases, the air temperature increases. the stratosphere has a layer of ozone, called the ozone layer. this layer absorbs most of the ultraviolet radiation from sunlight. this results in the stratosphere being warmer.

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".