As the size of groups increases, all but which of the following is true?

What is a concept?

Subcultures have their own norms and values, but also exist within the confines of a larger culture.

When can ethnocentrism be functional for a society?

Best friends form primary groups.

Nematode worms and annelid worms share which of the following features?  

Which of these are amniotes?

Which of the following combinations of phylum and description is incorrect?  

Which of the following does NOT describe the ANS?

During muscle contraction, cross bridges form when myosin heads attach to active sites located on ________.