Which of the following is true of threat behaviors? a. threat behaviors resolve conflicts without hurting the involved organisms. b. attacks are more common in nature than are threat behaviors. c. submissive behaviors elicit threat behaviors. d. threat behaviors are always followed by attack behaviors. e. unlike actual attacks, threat behaviors are consistent across species.

Which of the following describes a negative feedback loop? when the heart rate is too high, the body sends hormones that continually increase the heart rate higher. when a pregnant woman is in labor, the body sends hormones that increase the intensity of contractions, which then increases the secretion of the same hormones. when blood sugar is too low, the body sends hormones that raise blood sugar until it reaches a typical level and hormone secretion slows. when a person is jogging, the body sends hormones that continually decrease the rate of oxygen supply to the legs.