This is because meiosis divide the total chromosomes number by half its original number (2n/2 = n) which would be combined with the haploid egg cell to produce a diploid (2n) zygote white mitosis maintains the chromosome number.
<span>Wasting away of muscle is called atrophy. Atrophy can occur with genetic mutations, and it can also occur when you don’t use the muscle for a while. One environmental cause would be if you become paralyzed and can’t use a muscle. Other factors would be lack of exercise and not eating a healthy diet.</span>
Answer:
The correct answer is A. The cartilaginous structure between the "throat" and the trachea is the larynx.
Explanation:
The larynx is a tubular organ. The larynx wall is composed of 9 pieces of cartilage. Three are odd (thyroid cartilage, epiglottis and cricoid cartilage), and three pairs (arytenoid, cuneiform and corniculate cartilage). In addition, it communicates the pharynx with the trachea and is in front of it.
In the medical profession, understanding the body position, direction and planes creates a common ground for the professionals to communicate in their work. For instance, if a nurse write down a medical note concerning a patient, the doctor will know exactly the part of the body that the nurse is referring to in her notes. It also makes it easy for doctors and nurses to diagnose the parts of the body where their patients are having problems. Thus, knowledge of human anatomy provides uniformity and precision in structures identification.
