A. the empire was too large to keep united
The correct answer is that readers <span>receive so many routine messages that it is hard to catch their attention.
The main challenge is to create an imaginative message which will stand out from the crowd of other similar messages and attract the readers' attention. It is important to draw their attention to your message if you want to promote it and them to be interested in what you have to say.
</span>
Answer:
Explanation:
1. Short reflexes are stimulated by stretching or chemical stimulation of the myenteric plexus, which can result in peristaltic contractions.
2. Long reflexes utilize the parasympathetic nervous system, specifically the Vagus nerve.
3. Hormonal secretions like gastrin and secretin are released into the blood and stimulate relatively distant parts of the digestive tract.
4. Paracrine secretions like histamine and prostaglandins diffuse through the tissue fluids and stimulate nearby target cells.