Answer:
The answer is the accessory nerve.
Explanation:
We have 12 pairs of cranial nerves, the accessory nerve is the XI pair. This is responsible for the innervation of the sternocleidomastoid and trapezius muscles.
The fibers of the accessory nerve originate from neurons that are located in the upper spinal cord. These fibers join together forming roots and once the nerve is constituted, it enters the skull through the great hole that is located at the base of the skull.
Then, the nerve continues its path along the inside of the skull in the direction of the jugular hole and then leaves the skull next to the glossopharyngeal nerve (IX) and the vagus (X).
Thus, the accessory nerve enters and leaves the skull again, characterized by being the only cranial nerve which has this behavior.
Answer:
false
Explanation:
sunlight, water, and rocks aren't alive. biotic factors are things that are alive
<span>A cell will stop making any protein that needs it.
</span>
<span>Agrobacterium Tumefaciens which is also called as A.Tumefaciens is inserted into plant DNA to give the plant different traits which help produce transgenic plants. This genetic plant conversion is initiated by these A.Tumefaciens bacteria to stimulate cells and turning them into transgenic plant. This simple process is also low cost.</span>
