Ridges of wood at the base of trees that support the tree are called

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.

What is the approximate time of death of the body temperature is 29.4 degrees celsius

Which best describes a gene? a. a sister chromatid b. a chromosome c. a tetrad d. a piece of a chromosome