Hand washing is of importance for its hygenic and cleanliness is important and reduces bacteria and potential viruses and its best if The average human washes their hands if they engage in activities that are messy or not hygenic and its common and necessary that washing ur hands is something we humans do a lot of. Hope this helped.
I think it would be the second one because some think that there is enough evidence and some do not.
The first one with the boxing crab and anemone is mutualism.
The second one with the dog and flea is parasitism.
omg... that's really hard and i don't know what the answer is.
Explanation:
by the way, thanks for points
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.