Final answer:
Fingerprints can exist in three basic forms known as loops, whorls, and arches.
Step-by-step explanation:
Fingerprints can exist in three basic forms known as loops, whorls, and arches. Loops are the most common type of fingerprint pattern, where the ridges enter from one side of the finger, curve around, and exit from the same side. Whorls have ridges that form circular or spiral patterns. Arches have ridges that enter from one side of the finger and exit from the other side without forming a loop or spiral pattern.