Never before in human history had so many of the world's plants, animals, and microorganisms been so thoroughly and so abruptly mixed and dispersed. We call this phenomenon the Columbian Exchange. Determined to farm the American land in a European manner, the colonists introduced their livestock: pigs, horses, mules, sheep, and cattle.
Hope this helped!
Answer:
I think just the right amount.
Explanation:
The reason for me thinking this is that you may think the president has no boss but in fact, us as the people are their boss. They do tend to make really bad decisions often but somehow were all still here so it must have worked out in the end...
To the discovery of America, the " New World"
Because we humans are made from zygote which is formed by a combination of two haploid gametes !!
When the sperm and ova meet there is a crossing over type phenomenon which decides what will be the phenotype !! so we somewhere distinct from both our parents !!
1. - Ballot
2. - Independent
3. - Communism
4. - Appointed.
Hope this helps.
