To determine the velocity of a stream in several places, two earth science students tossed a stick in and timed its travel downstream. The first student, Jenny Jabberjaws, discovered that the stick moved from the starting point to a distance of 20 meters downstream in just 20 seconds. How fast was the stream moving at her location?

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.

Which of the following best describes the relationship between glucose and complex molecules such as hormones?

Idon’t know the answer and i’ve been stuck on it for a while now skskskskks