A class studies the phenomenon of flight or fight in a pack of coyotes. The students learned that over 30 stress hormones are released into an organism's body during a stressful event. The result is a change in breathing pattern, heart rate, and digestion. Which system is responsible for this response and the release of hormones? endocrine system

nervous system

integumentary system

muscular system

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