Which researcher trained an African gray parrot to answer spoken questions with spoken words?

To create the proper tone for an argumentative essay, writers should delete personal “i” statements. include vague statements. remove any slang words. focus on the evidence.

Dominic and stacy each have a stamp collection. dominic has six fewer stamps than three times the number of stamps stacy has. dominic and stacy decide to give all of their stamps to their younger sister, mary. if stacy had s stamps, which expression represents the number of stamps that mary received? a. (3s − 18)(3s − 6) b. 2s − 18 c. 4s − 6 d. 4s − 18

How did the romanov dynasty increase russia's power?