Liver flukes, like many flatworms, exhibit bilateral symmetry. This means their body can be divided into two equal halves along a central axis, with each half being a mirror image of the other.

Here's what bilateral symmetry means for a liver fluke:

* Two identical sides: The left and right sides of the fluke are nearly identical in shape and structure.

* Defined head end: They have a distinct head end with sensory organs and a mouth.

* Dorsal and ventral surfaces: They have a top (dorsal) and bottom (ventral) side, allowing them to move directionally.

This type of body plan allows liver flukes to effectively interact with their environment, move through the host's body, and locate food.