The geologic time scale A.
began when life first appeared and ended when humans first appeared.
B.
began when life first appeared and still continues today.
C.
began when Earth formed and ended when humans first appeared.
D.
began when Earth formed and still continues today.

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.

Atissue is a group of connected cells that have a similar function within an organism.