B. some areas of study within environmental science deal with abiotic elements. list three fields within environmental science that focus on nonliving aspects of the environment, and briefly define each. apex

Can happen anywhere along the spine if the neural tube does not close all the way. the backbone that protects the spinal cord does not form and close as it should. this often results in damage to the spinal cord and nerves. a) cleft palate b) spina bifida c) encephalocele d) down's syndrome