<span>The question is asking us which type of diversity is characteristic of the variety of organisms within an ecosystem. These organisms would be for example frogs, treets, insects - different species, therefore the best answer is c. Species diversity. Each species would have its own genetic diversity, but this is too specific for the whole ecosystem - on the level of the ecosystem, species are a more useful distinction</span>
Answer:Sugars and amino acids are made of the same elements but amino acids also contain nitrogen.
Explanation: its C
Controlled population growth.
Explanation:
US is a highly developed country and it has expansive infrastructure and highly mechanized agricultural equipments. So first option is not a choice. Second, access to chemical fertilizers and pesticides in a country with such advanced agriculture infrastructure is very easy. Third US is well known for using GM crops.
US does not have a controlled population growth because if not the birth rate then migration of people to US is a major concern for that country. Thus, this will be a correct choice for the given question.
