One organism benefits while the other is harmed
First Lady Michelle Obama has recorded an ad encouraging parents to teach their children good nutrition habits in order to stem the increase in child obesity. This message is an example of: a public service announcement.
The two categories are developed nations and developing nations. Developed nations are generally categorized as countries that are more industrialized and have higher per capita income levels. ... Developing nations are generally categorized as countries that are less industrialized and have lower per capita income levels.
