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.
A Johns Hopkins Medicine answered. Difficulty breathing or shortness of breath (also called dyspnea) can sometimes be harmless as the result of exercise or nasal congestion. In other situations, it may be a sign of a more serious heart or lung disease.In order to uncover the reason you may be experiencing shortness of breath, your doctor may request one or more of the following diagnostic tests: 1  Physical exam.2  Blood tests. 3  Exercise tests. 4  Electrocardiogram. 5  Ambulatory cardiac monitoring. 6  Echocardiogram. 7  Chest X-ray. 8  CT scan of the chest. Johns Hopkins Medicine answered. Difficulty breathing or shortness of breath (also called dyspnea) can sometimes be harmless as the result of exercise or nasal congestion. In other situations, it may be a sign of a more serious heart or lung disease.