I believe that the question refers to Australia and to the fact that it's been very isolated and that as a result it has developed a number of species which cannot be found anywhere else.
The series of events here would be 1) the geographical isolation of Australia (it separated from the other lands 99 million years ago) and 2) the frequent changes in climate it experienced which led to population bottlenecks (for example it was initially very warn and then it experienced a colder period)
Answer:
1.Likeness
2.The reciprocal awareness
3.Differences
4.Interdependence
5.cooperation
6.conflict
The correct answer is D. Kept people from settling farther west
Explanation:
In the United States, the Appalachian Mountains extend from the North of Maine to Alabama; this geographical feature creates a natural barrier that separates the East coast from western territories. Indeed, during the first decades of colonization, settlers only settled east to the Appalachian and in this territory, the first thirteen colonies were formed. This is because it was challenging to cross the Appalachian Mountains and settled in western territories. This means, these mountains initially prevented settlers from going farther west (option D.)
Exposure therapies involve replacing a negative response with a positive response, whereas aversive conditioning involves replacing a positive response with a negative response.
