Final answer:
Each slice in MRI corresponds to a separate cross-sectional image of the body, and has a separate k space.
Step-by-step explanation:
In the context of Magnetic Resonance Imaging (MRI), the term 'slice' refers to a specific cross-sectional image of the body. Each slice is obtained by manipulating the magnetic field gradients within the MRI machine. When the gradients are applied, the signals generated by the hydrogen atoms in the body are separate and distinct for each slice, resulting in a separate k space for each slice.