mitosis
Another name for cell division is "mitosis." If you study biology, you'll learn about cell division, when a cell divides into two smaller "daughter cells." During cell division, all the tiny elements of the cell also divide — including the cell's chromosomes, nucleus, and mitochondria.
It is “B” he is Forming a hypothesis
The level of protein structure that this function arises is called Quaternary structure.
For bettter understanding, we have to explain what this structure is
- Quaternary structure is simply a type of protein structure where two or more protein subunits join or combine themselves together just mainly to form what we call a biologically active protein.
- it is often referred to as the fourth level or last stage of protein structure.
From the above, we can say that the answer The level of protein structure that this function arises is called Quaternary structure is true.
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Answer: The Auerbach plexus or myenteric plexus.
Explanation: The muscularis externa is a composed layer of muscles, located throughout the gastrointestinal tract. It has an inner circular muscular layer and a longitudinal external muscular layer. Between the two layers there is a part of the nervous system called Myenteric plexus.
A plexus is like a web of axons (nervous tissue) that provides a specific function. In this case, the myenteric plexus has a main function: motility. All the digestive tract (esophagus, stomach and intestine) possess this structure, to give motility or “peristalsis”, so the food could travel all the way from the esophagus through the colon.