Answer:
Taxes, laws and the founding of the colonies
helped the Aztec farm more productive - chinampas
helped the Inca travel long distances and communicate with their neighbors - rope bridges
helped the Maya view astronomical phenomena such as eclipses with the naked eye - pyramaid at Chichen Itza
Dogs played important roles in the Atlantic slave Trade because they helped capture slaves in Africa and were used to run slaves down similarly to how dogs are still being used today in the mountains to hunt down and keep sheep at bay. This is the similarity between the two.
