Answer:
1 day.
Explanation:
From the given information:
The rate of mutation induced by RNA polymerase is:
Since the genome comprise of 19000 bp;
To complete a single replication, the viral cycle induce: 
However, in a single day; 10,000,000,000 viruses are reported to be replicated.
Hence, if a virus has 2 mutations; Then 10,000,000,000 virus will have:
SO, to round this up to whole number, it will take 1 day (s) to overcome the therapy.
Earth's birds developed their diversity through natural selection by some birds need to have long beaks if they need to fish and some need webbed feet to swim. They have these traits through natural selection.
Answer: stage of fruit ripening, characterised by a surge of respiratory activity and usually coinciding with full ripeness and flavour in the fruit.
Amoeba because it is a heterotroph and it has a cell membrane, nucleus, contractile vacuole, cytoplasm, food vacuole, and psudopods
