The scientific term that represents the morphology of *Bacillus subtilis* is rod-shaped.

Here's why:

* Bacillus is a genus of bacteria, and the name itself hints at their shape. "Bacillus" comes from the Latin word "bacillus", meaning "small rod".

* *Bacillus subtilis* is a specific species within the *Bacillus* genus.

* *Bacillus subtilis* cells are elongated and cylindrical, resembling small rods.

Let me know if you have any other questions!