Final answer:
A person born without eccrine glands would have a hard time completing the function of thermoregulation in the skin.
Step-by-step explanation:
If a person is born without eccrine glands, they would have a hard time completing the function of thermoregulation in the skin.
Eccrine glands are sweat glands that help regulate body temperature by producing sweat. When the body gets overheated, sweat is produced, and as it evaporates from the skin surface, it cools the body.
Without eccrine glands, the body would have difficulty cooling down, leading to difficulties in maintaining an optimal body temperature.