Answer:
they burn no fuel and release no greenhouse gases
Explanation:
Your answer should be tissues.
B is correct the births exceed deaths
This either attaches the virus to the host cell or dissolves the membrane letting the virus into the host cell. The viral enzymes(enzymes are again chemical compounds) multiply the viral dna copies and viral protiens. These are new viruses. These new viruses breakout of the cell to infect other cells.
Gamates cells have half the chromosomes