Puzzle 20

Coming to or reaching a place.

__ horn, brass instrument gives signals to a pack.

They get on-the-job experience, often for no pay.

Screen hooked up to a personal computer.

Body position, deportment.

Place where books are kept for lending, not sale.

Easier or more straightforward.

Scavenger bird, known for circling prey from above.

Coarse fern.

Rug for wiping feet before entering a home.

Underground passageways.

__ engineering is changing life's building blocks.

Huge sets of statistics for analysis of humans.

Questionnaires, opinion polls.