Description : What type of exoskeleton do some molluscs present?
Last Answer : Some molluscs, like bivalves and gastropods, secrete an external calcareous carapace (the shell). Calcium carbonate is secreted by the mantle, a fold in the epidermis, forming the shell. In pelecypods ... contains only part of the body, the visceral mass. Mollusca - Image Diversity: mollusc shell