Cues from inside an animals body can cuase the animal to respond with certain behaviors. These cues are called internal stimuli. Which of the following are bheavirol responses to internal stimuli? I. A deer responds to thirst by searching for water to drink. II. A cheetah responds to hunger by hunting for a gazelle to eat. III. A child responds to sleepiness by taking a nap. IV. A beer responds to seasonal changes by hibernating