A phenotype is a trait we can observe. Genes carry instructions, and the result of our body following those instructions (for example, making a pigment in our eyes), is a phenotypic trait, like eye color.
The medical term for expanding or opening wider is. apnea. the medical term for lack of or absence of breathing is. tissue. the medical term for groups of cells with the same function is. cell. the medical term for the basic unit of body structure is. menarche.
Sleep Apnea. Considered a sleep disorder, apnea literally means without breath.. In sleep apnea, the patient involuntarily stops breathing over and over during the night. Sleep apnea as a disorder can include episodes of a similar condition called hypopnea or slow breathing.. Hypopnea means the patient takes very shallow breaths or breathes at an abnormally slow rate.