Final answer:
The basic difference between dense irregular and dense regular connective tissues lies in the arrangement of fibers and adipose cells.
Step-by-step explanation:
The basic difference between dense irregular and dense regular connective tissues is in the amount of fibers and adipose cells present.
Dense regular connective tissue consists of collagenous fibers packed into parallel bundles, providing strength and resistance to stretching in one particular direction.
In contrast, dense irregular connective tissue consists of collagenous fibers interwoven into a mesh-like network, giving it strength in all directions.