Just like meditation, yoga has many styles of practices with different exercises, philosophies, and desired outcomes. Most practices include physical poses (asanas) designed to purify the body and provide physical strength and stamina.
Yoga works with the energy in the body, through pranayama or energy-control, as well as breath-control in order to still the mind and attain higher states of awareness.
There are so many possibilities for a short morning yoga practice, but we like the sun salutation (or surya namaskar in Sanskrit) as a way to begin the practice.