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.
Orthopnea Definition Orthopnea is a condition that causes shortness of breath when a person is lying down. The feeling is characterized by tightness in the chest and is often described as âair hungerâ, as one feels that they arenât able to breathe enough and feel a deficit of oxygen.