Select properties for the most abundant isotope of a particular element are given. which of these properties are the same for the second most abundant isotope of the element?

one characteristic that is shared by all is a soft body. many

of these invertebrate animals also have an outer shell to protect their

body. oysters, clams, snails, and mussels are all mollusks. so are octopuses, squids, and slugs. mollusks live on land and in freshwater.

well, that's easy; the answer's c, "it reduces contamination of the water and substrate of the estuary."