HELP ABC HELP ME PLEASE can someone please help me with this ?? which the blank spots where it says “there are ___” amount available I was told we can put pretty much any number that works .. it’s just that I don’t know how to do it , please give me some answers ! or at least give one answer and explain it to me, thanks !!!

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.

Q: a: in sexually reproducing animals, once fertilization of the egg takes place, the exists as a single cell until cell division begins

What are the responsibilities of the region of the brain highlighted below? =+= will rate brainiest =+=