Answer No
Explanation:
No, because it won't be safe for the children who have been vacinated they're is still a chance they can get it. Als o, the child's parents may have spent money because of this.
Answer:c
Some answers can be:
When there is no selective pressure
When there is low gene flow
When there is a bottleneck
Be alone make you go faster but be in a community make you go longer.
Answer:
20 percent.
Hope this helps!