Marco is training his dog. Initially, he gives the dog a biscuit each time she sits on command. Later, he gives the dog a biscuit every fourth time she sits on command. Marco has replaced a schedule of reinforcement with a schedule.

What would be the most relevant question to ask to find out why tutankhamen died? what was tutankhamen’s age when he died? was a doctor with tutankhamen at his death? why was tutankhamen mummified after his death? did tutankhamen’s body have evidence of disease?

Lots of points: economics: the dollar value consists of all of the goods and services sold by of each of the following entities except: a. government b. consumers c. unemployed d. net exports

Match the word to an antonym. 1. hate evil 2. good knowledge 3. sad short 4. sunset love 5. courteous gigantic 6. minuscule dawn 7. long wise 8. imprudent happy 9. cowardice rude