1. What is proper "posture" (way of standing) to ensure good singing technique? A: Slouching, shoulders forward
B: Standing straight up, armd by your side
C: Leaning to one side
D: Sitting, with a curved spine

What is the identity of the planets?

Crossing over is a method of (blank)?

Abird flies by moving its wings up and down. which two systems are most directly responsible for the movement of a bird's wings? a. skeletal and muscular systems b. respiratory and muscular systems c. skeletal and digestive systems d. respiratory and digestive systems