Hello!
1) A small group of birds arrives from South America.
2) Geographic isolation
3) Changes in gene pool
4) Behaviors from interbreeding
I hope it helps!
1)Carbon
2)Hydrogen
3)Nitrogen
4)Oxygen
5)Phosphorus
6)Sulfur
<span>The virus uses the cell to replicate itself and then moves on. The cell, after replication dies as the new virus spreads.
</span>
