How much energy is available at that there tropic level at the first traffic level has 300,000 kcal available energy?

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.

I’m stuck on this question cuz i’m stupid sksksksk

Si el equipo no fuera bueno no con el entrenador.