The purines-adenine and guanine
Answer:
Sympathetic division is responsible for the nervousness, pounding in the chest and the butterfly movement in the stomach while parasympathetic division overest a and digest the nervousness.
Explanation:
The nervousness experienced when someone is about to speak in front of a class is caused by the sympathetic system which have divergent effects as many different effector organs are activated together for that same purpose. I.e More oxygen are inhaled and delivered to skeletal muscle. The respiratory, cardiovascular, and musculoskeletal systems are all activated at the same time causing an unstable reaction to the central nervous system...
On the other hand, the parasymthetic division causes the central nervous system to rest and digest at a very slow rate..
At a point in time the central nervous system triggered an Homeostasis action which posses a balance between the two divisions.I.e symthetic and parasymthetic and then brings about a balance to the body reaction at that same point.
Answer:
Food additives are substances added to food to preserve flavor or enhance its taste, appearance, or other qualities. Some additives have been used for centuries; for example, preserving food by pickling, salting, as with bacon, preserving sweets or using sulfur dioxide as with wine. To maintain the nutritional quality of a food - e.g. by avoiding degradation of vitamins, essential amino acids and unsaturated fats. To provide ingredients for consumers with specific nutritional requirements e.g., sweeteners in tooth friendly confectionary or bulking agents for those seeking to reduce caloric intake.
Source:
Wikipedia
I also used multiple websites saying the same thing.
Such as Food-info.net
Www.Just-Food.com
