1. ancient societies like the mayans
a: only united when they were about to be conquered by enemies
b: never developed the ability to create accurate calendars
c: had a social structure similar to egypt’s pyramid structure
d: were concerned with religious duties more than daily activities

C. Had a social structure similar to Egypt's pyramidal structure.

Explanation:

In the Egyptian social structure, the servants and slaves were at the bottom, The Pharaoh and the priests were at the top. Egyptians even raised some human beings to gods, Pharaoh was also thought to be a god in human form and exercised total control over their people. Both Mayans and Egyptians had a pyramidal social structure.

2018 means 2018 ce or common era

there have been other eras too including bce, which included way more years.

hr2520 is the patient's act. there is required the secretary of health to summon a committee to develop a national strategic plan of prevention. this committee has forth provisions that make possible for the govern entities to acquire private health insurance services.

is easier to keep this hr2520 as federal, because that way the secretary of health has centralized power to deal with private insurance companies and the federas government has more ways and power to negotiate with them, than doing this process state by state in their specific terms.