If I drop "each of which has fingerlike projectives poking through the opening" (which I assume is a non-restrictive adjective clause or some sort), the sentence becomes Taste buds are onion-shaped structures with between 50 and 100 taste cells, called the taste pore, located at the top o...

The thirteen original British colonies in North America, some formed as commercial ventures, others as religious havens, each had a written charter that set forth its form of government and the rights of the colonists. A. some formed as commercial ventures, others as religious havens, each had a wri...