Why was copernicus' heliocentric model rejected? a. it contradicted the church. b. it was not based on research. c. it was not scientifically accurate. d. it contradicted ptolemy's earlier model.

Both the nervous and endocrine systems send electrical and chemical signals for internal communication. select the best answer from the choices provided t f

How did the construction of the erie canal improve transportation in the united states in the 1820s? a. the canal connected the great lakes to the mississippi river. b. the canal connected the great lakes to the ohio river. c. the canal connected the atlantic and pacific oceans. d. the canal connected the great lakes to the atlantic ocean.

Plz i need this answer t-t in a couple of paragraphs, list two reasons why florence is the birthplace of the renaissance. explain how these reasons contributed to the renaissance