Some of the earliest evidence of people riding horses in warfare as mounted archers orspear-throwers are usually credited to which of the following empires
a. romans
b. retricerians
c. persians
d. greeks

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.