What might explain the difference in heritability coefficient outcomes between family resemblance studies that use twins and those that don’t?

Briefly describe the roles/parts played by trumpet, clarinet, and trombone in new orleans-style collective improvisation, and explain why this type of collective improvisation is fundamentally different from what happens when a typical modern jazz group improvises together.

How were the west african trading empires able to grow and become wealthy

The state convention nominates which of the following groups