The soft-tissue lining of oysters and clams creates pearls. is a pearl a mineral? yes, because it forms naturally. yes, because it is beautiful and rare. no, because it is created artificially. no, because it is an organic substance.

The table below shows data for a population of fish in a pond. fish body color # of fins scales? tail shape a silver 4 yes fan b pink 4 yes flat c black 4 yes fan d orange 4 yes flat e orange 4 yes fan f silver 4 yes flat which of the above characteristics would be most in developing a classification system for the fish? a. body color and tail shape b. presence of scales and tail shape c. body color and number of fins d. number of fins and presence of scales