State one specific response of the body to the increase in blood glucose level that would account for the changes that begin about 30 minutes after eating the cookie.

Secrete insulin.

Explanation:

If the body has increase in blood glucose level due to eating of cookies, our body secrete insulin in order to regulates blood glucose level. If there is too much glucose in the body, the body secretes more insulin in order to regulate the glucose level in the blood whereas if there is low glucose level in the blood, our body secrete glucagon through pancreas in order to raise blood glucose level.