Alimestone rock is found in an arizona desert. the limestone is gray and has a fish fossil. what can scientists learn from the limestone? a) there was once a lake in the area. b) some fish lived on land many years ago. c) many years ago there were dinosaurs in the area. d) there were many trees and plants in the area at one time

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