What research method is used in order to establish what causes a behavior? an experiment What is the first step of the scientific method? pose a question In the science of human development, &quot;nurture&quot; refers to: environmental influences.
Vertical lines on one's nails, like those the writer seems to have, are a common phenomenon that often get more pronounced with age. There are many reasons for ridged nails but the most common is aging, says Dr. Phoebe Rich, M.D., FAAD, clinical adjunct professor of dermatology at Oregon Health Science University.
nail (transverse ridges) FREE subscriptions for doctors and students... click here You have 3 open access pages. Beau's lines are transverse ridges in the nail plate that form as a result of temporary interference of cell division in the proximal nail matrix (1). It may be caused by. trauma; chemotherapeutic agents; systemic illnesses such as myocarditis, peripheral vascular disease, uncontrolled diabetes ; febrile illnesses â scarlet fever, pneumonia (2).