The defecation reflex involves two postive feedback loops. these loops are the stretch receptors in the rectal walls and the sacral parasympathetic system. Defecation reflex empties the rectum by peristaltic movements push fecal matter from the sigmoid colon into the rectum. Then this distension of the rectal walls stimulates stretch receptors which results in defecation.
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I hope this helps!
I think the correct answer from the choices listed above is option 1. The statement that would describe this insertion would be that a new base had been inserted. As you can see, G is inserted between G and C. Hope this answers the question. Have a nice day.
Evidence of water displacement, and or global warming.
