In which of the following ways do forests tend to have a positive environmental impact on watersheds? a
Forests can slow the rate of erosion within a watershed.
b
Forests can filter some pollutants out of flowing water.
c
Forests can speed the rate at which water moves through a watershed.
d
Both A and B

Ithink the dna sequences may vary but the amino acid sequences are identical. 

1) the mayans built pyramids just like the egyptians. the mayans also used hieroglyphics like them.2) power was passed down by family. for example, if the father dies, the son would be the next king.3)they both built pyramids for their structures.4)the main crop for the mayans was maize.5)they also grew manioc, beans,  squash,  amaranth, and chile peppers.