Normally cooks with microwaves emitting from a device in the microwave(sorry,I don't know the name of the device)
The intervertebral discs, which are between vertebrae, are the parts that prevent the vertebrae from grinding against one another.
The intervertebrals discs act as a cushion; they absorb the stress and shockw that occur during movement, preventing such grinding.
A Pseudopodia is a temporary protrusion of the surface of an amoeboid cell for movement and feeding.
Answer:
a large boulder I guess , please double check