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.
Answer:
C. natural selection
B. Gram negative organisms
Explanation:
A fossil of a mammal. A mammal is any warm blooded vertebrate.
E because i looked on quizlet idk look up the answer sorry
Answer:
I beleave it is called electromagnetic radiation.
Don't quote me on this however, I'm not entirely sure
