The right answer is B. back pain from the compressed nerves
Narrow cervical canal symptoms can range widely from no symptoms to gait and balance disorders to radiculaglia when there is foraminal narrowing associated with central narrowing. Discrete balance disorders may be early signs of myelopathy (posterior cords). Later, the patients suffer from proximal weakness and paresthesia of the four limbs, as well as disorders of the fine motor skills of the hands (do not manage to close buttons of shirt, difficulties with the writing, etc., on reaching the lower motor neuron). In more advanced stages, gait disturbances and even later sphincter control disorders may occur (upper motor neuron involvement).
<h3><u>Answer;</u></h3>
A. Gas exchanges takes place by diffusion.
B. It is an open system.
<h3><u>Explanation</u>;</h3>
- Most molluscs and arthropods have an open type of circulatory system.
- Open circulatory systems pump blood into a hemocoel with the blood diffusing back to the circulatory system between cells.
- Blood is pumped by a heart into the body cavities, where tissues are surrounded by the blood.
<span>Which term names the offspring of a cross between two true breeding parents is First Generation...B</span>
