Questions:
1. explain the difference between a protective factor
and a risk factor for addiction. give at least one
example of each.

from the original order (top to bottom) the new order will go

1 (founder)

4 (hawk)

2 (mutate)

3 (next generation)

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.

the answer is d.) homologous; have mammary glands

the animal that would be cutest if scaled down to the size of a cat? elephant