Acompany has many genetically engineered poplar trees around its factories. which best describes the poplar trees?
a. they are being used for phytoremediation.
b. they have transferred their genes to a nontarget species.
c. they have reduced the effectiveness of pesticides.
d. they are being used for disease resistance.

The best answer to the question that is being presented above would be letter a. The poplar trees used by the company and its factories which are genetically engineered would be used for phytoremediation. They use poplar trees to replenish the nutrients lost around the factories.

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.