16.Intermingled with the pines were shorter, ragged-looking trees with lumpy trunks, wizened branches and fine twigs like gnarled fingers: Betula pubescens, downy birch.
17.And destinations like the theater, barber shop, and grocery store were put in separate buildings encouraging intentional movement and intermingling in that public space.
18.In humans, that means relaying messages between 30 trillion cells spread among dozens of different interacting systems, a vast metropolis of intermingling cellular mishmash.