According to Charles Darwin, facial expressions a. are a uniquely human expression of emotion. b. may have originated in a common ancestor. c. vary from culture to culture. d. are a sexually selected trait.

Bertina is conducting a long-term study of intelligence, asking if it changes significantly as people age. In this study, intelligence would be considered a (n) : constant. confound. variable. sample.

Which government institution would most likely handle a complaint about a case of workplace discrimination?

Why does a delta often from where a river meets the ocean?

Martha goes to the store, but decides not to purchase a new purse because she does not have enough money saved up to pay the $50 cost. This statement describes which of the following allocation methods? Question options: A) price B) lottery C) force

What type of landform are the Koreas? A. island B. peninsula C. volcano D. mainland

What is the cause-and-effect of native American migration from Asia to North America

Syn flood is the result of some incomplete protocol exchange: the client initiates an exchange but does not complete it. Unfortunately, these situations can also occur normally.

Name two advances made by indian mathematicians which without computers wouldn't be possible today

Why Was The Dred Scott Case Important?

Definition: a payment to a stronger empire in acknowledgement of their power or for protection. China collected tribute from it's neighboring countries (Japan, Korea, Vietnam) under the Ming dynasty.