It plays an important role in digestion by ensuring that food goes down the esophagus (foodpipe) and not the trachia (windpipe)........
<h2>Answer:</h2>
The correct option is A .
Through the process of mitosis, the nucleus divides to form <u><em> </em></u><u>2</u> new nuclei, each containing<u> the same </u>number and type of chromosomes as the original.
<h3>Explanation:</h3>
Mitosis is a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth. According ti that definition, Option A is correct one.
in metaphase the chromosomes are lined up on the spindle fibres across the middle of the cell. and during anaphase the chromosome copied are separated and moved to either end of the cell on the spindle fibres. basically the chromosomes are in different positions
Answer is It can be used by scientists everywhere and everything.
All of the systems that are aroused by the <span>sympathetic nervous system</span> are relaxed by the parasympathetic nervous system.
<span>autonomic nervous system (ANS) is a part of the central nervous system that controls all parts that the human cannot have a control on (which are done automatically) like heart rate and breath
ANS is divided in two opposite systems: sympathetic and parasympathetic:
</span>Parasympathetic nervous system: caracterized by the tag "<span>rest and digest" it decreases the heart rate, blood pressure, and breath. It increases the gastrointestinal motricity, letting the organism resting (this happen after a meal).
</span>Sympathetic nervous system: caracterized by the tag "fight or flight" it increases the heart rate, blood pressure, and breath. It decreases the gastrointestinal motricity, letting the organism focus on its environment (this happen when we are in danger).
