Question 14 protein molecules a. are made up of amino acids linked together by peptide bonds. b. include enzymes that serve as catalysts in a biological reactions. c. serve both structural and funtional roles in the body. d. all of these are correct

8) animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. d) a dog is getting hot in the sunlight, so he moves to a shaded area.