How do sea stars move?

By moving water from the vascular system into the tiny feet, the sea star can make a foot move by expanding it. This is how sea stars move around. Muscles within the feet are used to retract them. Each ray of a sea star has a light sensitive organ called an eyespot.

Explanation:

u mean starfish

Explanation:

they have like little tenticles on their front side of their fins? ig and they stick to the ground and move.

it cools slower in the earth meaning the crystals have more time to form than lava on the surface

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.