Dead skin cells are shed in thin sheets because they are held together by "spots" of proteoglycan reinforced by intermediate filaments. Such strong intercellular connections are called:

Desosomes and its function

Explanation:

Desmosomes are important adhesive intracellular junctions that link the plasma membrane to the cytoskeleton's intermediate filaments. They are often distributed in areas which are subjected to mechanical stress such as the tissues of the gut and bladder, the myocardium and epithelia. Desmosomes are known for their adhesive properties. Functions are; Resisting mechanical stress Providing stability and integrity to the tissue structure by providing sites of attachment for cytoskeleton intermediate filaments Mediating cell signalling pathways Roles in tissue morphogenesis, development and differentiation.

The open ocean begins at the low-tide mark and extends to the end of the continental shelf

above statement is not a true statement about the open ocean because the open ocean has low levels of nutrients. most of the photosynthetic activity on earth occurs in the open ocean within the photic zone. organisms in the deep ocean are exposed to frigid temperatures and total darkness but it does not begin at the low-tide mark.