Vernix caseosa is a protective substance that covers the surface of the skin of the fetus during the sixth and seventh month. In Latin, what does caseosa mean?
Annelids are found worldwide in all types of habitats, especially oceanic waters, fresh waters, and damp soils. Most polychaetes live in the ocean, where they either float, burrow, wander on the bottom, or live in tubes they construct; their colours range from brilliant to dull, and some species can produce light. The feather duster (Manayunkia speciosa) inhabits the Great Lakes and some rivers of the United States.
Common sea stars live in the North Atlantic Ocean along the coasts of Canada, the Northeastern United States, Europe and the northern coast of Africa. Common sea stars are found along rocky shores in intertidal areas, and deeper waters out to about 2000 feet.iet and Feeding. Common sea stars eat mollusks, including bivalves (a favorite prey item is the blue mussel) and gastropods. They also eat crustaceans and worms. They act both as active predators and scavengers.