Answer:
i think when you drink it
Explanation:
When levels decrease, the parathyroid releases hormones.
Generally speaking if time is on the x-axis and the thing that’s changing is on the y-axis, a steep curve would indicate a rapid rate of change.
Answer:
Because if the 4-year-old child passes out from holding his breath, he will immediately begin breathing again, keeping him alive.
Helper T cells <span>are required for almost all </span>adaptive immune responses<span>. They not only help activate B </span>cells to<span> secrete antibodies and macrophages </span>to<span> destroy ingested microbes, but they also help activate cytotoxic </span>T cells to<span> kill infected target </span>cells<span>.</span>
