I don't know I'm just doing this because it's not letting me continue
D because all your veins ate nearly in your heart and if your heart stops they stop too
The answer to this question would be: insulin
Insulin is a hormone that produced by the pancreas. Insulin makes sugar go inside cells. Sugar is the food for cells. Without insulin, the sugar can't enter the cell and the cell food is depleted. This will cause the body feel that the sugar is not enough and trying to increase the sugar concentration. This will result in the increases of blood sugar level.
Loss of habitat from any number of causes is the main reason for species endangerment currently.
