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.
<u>Answer:</u>
ATP or the Adenosine Triphosphate is the energy currency of the living world, which transfers energy from one organic molecule to other, even from one cell organelle to other.
<u>Explanation:</u>
The functional group of ATP is phosphate which is quite evident from its name.
Adenosine diphosphate is the parent molecule. During either photophosphorylation or the respiration, the Inorganic phosphate molecule that is present in the cellular fluid gets attached to the parent molecule ADP via a high energy bond which is broken to give energy to the normal reactions.
Answer:
c.reflects evolutionary history.
Explanation:
The best classification system in biology is that that reflects evolutionary history, this is because more developed animals evolved from ancestors, this means that little modifications on the DNA happened over the course of million of years that created the animals that we know today, so this little differences would be relfected on a classification system.
Answer:
The following organelles are common to both types of cell, and can be seen in electron ... area for absorption of substances into blood (in this case, glucose). ... with a green marker, the red and green markers become mixed within the ... ethanol produced by the yeasts is purified by distillation and water is removed to
Explanation: