Give an example of a stimulus, and explain how your nervous system and muscular system work together to respond to it. Explain in 2-4 sentences.

the answer is: they occur when the sun, moon, and earth are aligned. in spite of their name, these tides occur twice a year in the spring and fall.

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.

a. the production of carbon dioxide through the process of photosynthesis