The answer would be:
<em><u>D. Insulin</u></em>
Insulin is a chemical messenger that is responsible for the regulation of blood glucose levels. It is manufactured in the pancreas and secreted by the beta cells as a response to glucose. When glucose levels in blood plasma increase, insulin is secreted to stimulate glucose uptake.
Answer:
4
Explanation:
the amount of protons and electrons are how you verify the atomic number
Pea plants
These belong to legumes and legumes have a mutualistic relationship relationship with bacteria which allows them to add atmospheric nitrogen into the soil by a process called nitrogen fixation.<span />