If there were no predators they would overpopulate (like us humans have). It would also mean the things that were once predators would die off, leaving only the producers and primary consumers to run the world (so pretty much the vegans/vegetarians and anything that doesn't eat meat, as well as plants).
I believe the answer is: They are based on the arbitrary borders of old European empires
African continent was colonized by different european empire. To avoid conflicts among the european, they divided africa into several territories and dtermine which country has the jurisdiction over each territories. After African nations gained independence, they still use this separation as borders to differentiate one country with another.
Answer: food desert
Explanation: Food desert which is the direct opposite of food oasis is an area with decreased or limited access to affordable healthy food i.e decreased access to food and availability of healthy food.
Food desert is a good example of institutionalized bias in food system that have a negative impact on health of people living in such areas. Many groups that have entered the US have experienced this form of discrimination in one form or the other.
I am going to give you my honest opinion. I believe our country is still fighting against discrimination against today's immigrants because of the president we have. Immigration should not be restricted because without some of the immigrants we have here in America, we'd be limited in what we know and have achieved. Say for example, if Christopher Columbus never immigrated from England, he wouldn't have found the New Land of America (not to say that he founded this land in the first place but that's just a general example). Ultimately, if you were Hispanic, African, Asian, or even from Canada, you should still have access to a freer country such as America, where rules are lessened and given less strictness. That's my opinion, what's yours?