Question

A researcher discovered a new hormone that raises blood calcium levels. according to the principles of negative feedback, this hormone would be secreted when blood calcium levels increase. blood calcium levels decrease. blood calcium levels are stable. blood calcium levels are elevated. none of these choices are correct.

Answer 1

This hormone would be secreted when blood calcium levels decrease.

Negative feedback means to push in opposing direction, thus a decreasing calcium level will stimulate an increase in calcium.