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.
A dichotomous key is a tool that helps the user to determine the identity of items in the natural world, such as trees, wildflowers, mammals, reptiles, rocks, and fish.
the first one is false because DNA replication doesn't begin by breaking apart the hydrogen bonds thats the second step
-the second one is true
Every cell<span> in your body contains organelles (structures that have specific functions). Just like organs in the body, each </span>organelle<span> contributes in its own way to helping the cell function well as a whole. The </span>nucleus<span>, </span>mitochondria<span> and </span>chloroplasts<span> are all organelles.</span>
Answer: Most pods contain anywhere from 2 – 30 dolphins depending on the species and the situation, however there are occasions when pods gather with other pods to form superpods of 100 or even several thousand dolphins!
Explanation: