In a study of physical endurance researchers saw big increases in the heart rate and breathing rates of people immediatly after they took part of tough exercise which statement best explains the increse in the heart rate and breathing during exercise

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

What errors exist in the table below?

Can you answer all these questions?