Is a seashell biotic or abiotic?
Is a seashell biotic or abiotic? The definition of “abiotic” is “non-biological.” A seashell is made by a living organism, therefore it is biotic. In the sea, shells come from creatures like clams, oysters, mussels, scallops, whelks, conchs, periwinkles, and other sea snails. Are closed seashells alive? If a bivalve shell is intact, and both halves are tightly closed together, then there is still a living creature inside. If you touch them and they close their shell, then of course they are alive! If you're not sure then err on the side of caution and place it gently back in...