[Solved] The most reliable evidence in studying the past is that which is visible to the naked eye.Anything microscopic is too small to be considered reliable. Epidermis: The epidermis is the outermost layer of the skin, providing a protective barrier against environmental damages, such as pathogens and UV radiation. Dendritic Cells: Immune cells that process antigen material and present it on the surface to other cells of the immune system. Desmosomes: Specialized structures in cell membranes that provide adhesion and mechanical linkage between neighboring cells. Dense Irregular Connective Tissue: Dense irregular connective tissue is a type of connective tissue that has fibers (mostly collagen) that are arranged irregularly and densely to provide strength and resistance to stretching in multiple directions.