Primary reinforcers are effective because a. they satisfy basic biological survival needs. b. we inherently want approval for our actions. c. they have been associated with secondary reinforcers and have become reinforcing. d. the organism has learned to want them.

Briefly describe the political and economic situation in the united states after world war i. then explain how political and economic factors during the period contributed to the great depression.

Articles of the confederation is a good representation of a system of government.

The arrival of the conquistadors affected every indigenous people group they encountered. in this activity, you will write letters from the point of view of an incan and a conquistador. research the topic on the internet or at the library before writing. each letter should contain at least two paragraphs and be at least eight sentences long. 1) you are an inca and the conquistadors have arrived in your village! write a letter to be sent to other incan villages. describe your thoughts about the conquistadors and how their arrival might change your life. 2) write a letter from the point of view of a conquistador meeting the incas for the first time. address the letter to your family back in spain. me! i would really appreciate it! my dog died this morning and we are trying to fill out a form for her. it would amazing if you could me on this.