Final answer:
Adipose tissue is found in the hypodermis layer of the integumentary system, which connects the skin to underlying structures and contains fat cells for storage and insulation.
Step-by-step explanation:
The adipose tissue, which is classified as a loose connective tissue, is found in the hypodermis layer of the integumentary system. The hypodermis is the layer directly below the dermis and connects the skin to underlying structures. It consists of well-vascularized, loose, areolar connective tissue and adipose tissue, which functions as a mode of fat storage and provides insulation and cushioning for the skin.