Answer:
The right answer to this question is option A) island forms and mainland forms descended from common ancestors.
It's known in science that a long time ago, all the continents were only one, united all together in a bigger one. This can be observed by the way every continent can fit another one.
A proof of that too, is evolution, when we find organisms in an island that share some characteristics with organisms from another island, that can mean some things, they come from the same place, or these islands share characteristics that lead these organisms to be this way through evolution.
Usually, only mammals undergo Carnegie stages.
Therefore, 'B. Sheep' would be the correct answer.
The internet as in social media? well if it is that it causes a severe decline in grade with teens and it also makes the numbers for depression cases go up with younger kids because they are the main consumers in social media
