Which of the following is most likely to be an observation made by an anatomist?

a.) rna polymerase binds to a promoter, a dna sequence that becomes a gene.
b.) sensory receptors convert information into impulses to be sent to the cns
c.) the heart's epicardium forms a protective outer covering and secretes serous fluid.
d.) the middle ear is an air-filled space that separates the outer and inner ear.

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.