Question 9 D The presence of tiny hairs, called setae, on the toe pads of some geckos is associated with the ability to adhere to smooth surfaces. This ability allows geckos to climb in areas where many predators cannot. Scientists studying the evolution of setae have identified three closely related species of gecko, only one of which can adhere to smooth surfaces. A model of th evolutionary relatedness between these species is represented in the figure. G. humeralis 2 OG. concinnatus Can adhere O Cannot adhere 3 OG. antillensis Which of the following statements is an accurate description of the evolutionary relationships shown in the model?

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A: A species is a group of individuals that interbreed.

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Animal Behavior

Animal behavior can be defined as all the things that animals do. In response to a stimulus, an animal performs a certain fixed action pattern, or FAP, of behavior. This response occurs to make the animal more adaptable to change. So, behavior is generally a stimulus-oriented response. A behavior is an expression of the capabilities of the nervous system. A stimulus is determined by the environment, while the nervous system determines a response.