Answer: the correct answer is d. all of the above must happen for defecation to occur.
Explanation:
In response to the distention of the rectal wall, the receptors send sensory nerve impulses to the sacral spinal cord. Motor impulses from the cord travel along parasympathetic nerves back to the descending colon, sigmoid colon, rectum, and anus. The resulting contraction of the longitudinal rectal muscles shortens the rectum, thereby increasing the pressure within it. This then opens the internal sphincter.
Answer:
hello!
Explanation:
Fermentation is another anaerobic (non-oxygen-requiring) pathway for breaking down glucose, one that's performed by many types of organisms and cells. In fermentation, the only energy extraction pathway is glycolysis, with one or two extra reactions tacked on at the end.
Answer: i think it is domains kingdoms
Explanation: based on their cell types
She is able to determine it to be a mollusk because Mollusks
characteristics are the following:
Term from Latin meaning “soft”
Has a mantle and cavity (breathing and excretion)
Radula (band like an antenna) is present
<span>Structure of the nervous system (brain wraps the
esophagus and has two nerve chords)</span>
