Which of the following is a disadvantage to e-mail communication?

Which sentence is the best explanation of how food surpluses led to a job specialization during the neolithic revolution

Which would make the best heading for this list of notes about the migration of african-americans during the reconstruction era?

Which sentence best describes the relationship between chlorophyll and the chloroplast? a.)chlorophyll is a chemical found in a chloroplast. b.) chloroplast is a chemical found in a chlorophyll. c.) both chlorophyll and chloroplasts are found in animals. d.) both chlorophyll and chloroplasts make carbon dioxide.