The secretion of hormones is an example of a physiological feedback loop. when hormones are needed, they are secreted by glands. when the hormones are no longer needed, the glands are signaled to stop secreting the hormones until they are needed again. thus, the basic function of a physiological feedback loop is

Select the correct answer from each drop-down menu the images show fossils of a modern bird and two extinct organisms (a tyrannosaurus rex and an archaeopteryx). based on the structure of the three organisms, it can be concluded that the archaeopteryx and bird have wings, while dinosaurs have limhe se it can be concluded that