A. Charles Darwin
Darwin suggested that a sneer retains elements of baring one's teeth so as to threaten predators.
Answer:
It tells us that if it is instigated it can be deadly.
Explanation:
Answer: sorry i don't know and aww
Explanation:
Answer:T hey both interfered with colonial claims to western lands.
Explanation:
Diseases introduced by white settlers.
The main reason for the wipe-out of Native Americans was the threat of the diseases introduced by White Europeans. This ended up killing many Native Americans across different tribes, as they had no immunity to these diseases and had never dealt with these kinds of illnesses before. This was a rampant problem and attained the Native Americans quickly after the European settlers arrived.