A scientist was studying how a specific virus infects skin cells. In a lab, the scientist exposed a group of skin cells to the virus. Over
time, the number of living skin cells in the group decreased.
Which statement explains why this change occurred?
A.
Viruses reproduce before they enter cells, and the new viruses infect these cells.
B.
Viruses eat living cells to provide energy for reproduction.
C.
Viruses reproduce inside of their host cells, eventually killing the cells.
D.
Viruses reproduce outside of cells, creating harmful chemicals that kill the cells.

The answer is C.
Viruses cannot reproduce without a host. Viruses do not eat selves to provide energy for their reproduction.
Viruses do not reproduce outside of cells nor do they create harmful chemicals on their own.

1. when the tempature rises,your sweat glands and then springs into action making perspiration. some sweat evaporates with your skin taling heat with it.2.some of the blood pumped by the heart travels by your lungs to get rid of carbon dioxide and pick up oxygen.3.saliva produces by, you drinking water which saliva is 98% of. when mucus builds up in your body it also creates saliva as well as, antibacterial compunds.4.when the core body tempature drops, the shivering reflex is triggered to maintain homeostasis. for example: when you get out the pool you start to shiver because it is cold.