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.
It's characterized by sudden and severe shortness of breath at night that can wake a person up can cause coughing and wheezing. PND is a sign of congestive heart failure and often strikes one or two hours after the person with heart failure has fallen asleep. Specifically, dyspnea, refers to the sensation of difficult or uncomfortable breathing,according to the National Center for Biotechnonoly Information. However, Dyspnea is not the same as hyperventilation which consists of short, quick breaths and an inability to get one's breath.