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:
insect
Explanation:
because i think so and if i am wrong i am so deeply sorry
The answer is.
Its cells are widely dispersed and surrounded by a fluid
My Answer: <span>demographic transition
Hope I helped! :D</span>
Dependent selection is one term that you can use for that