An individual eats a hamburger, what two systems must interact to transfer the nutrients in the hamburger to the human muscle system?

the answer to your question is a plant

the national environmental policy act (nepa) is a united states environmental law that promotes the enhancement of the environment and established the president's council on environmental quality (ceq). the law was enacted on january 1, 1970. to date, more than 100 nations around the world have enacted national environmental policies modeled after nepa.