Why are facial expressions culturally universal?

Hello. The answer to your question is simple!

By virtue of their biological origins (1⇓–3), facial expressions have long been considered the universal language to signal internal emotional states, recognized across all cultures. ... Like a generative grammar (19, 20), we randomly generated all possible three-dimensional facial movements (see Movie S1 for an example)

Explanation:

Hope i helped!

the answer is: c. c.it limited the president’s power to start wars.

the war powers resolution of 1973 requires the president to notify the congress whenever the president wanted to order a military operation to other countries within 48 hours. if after being reviewed the congress disagree with the proposal, that the president will be banned from ordering the operation.

answer; john locke;