Jean and Tyrell are planning a mission to study the surface of of an outer planet which machine would most likely choose for this mission? A. a rover
B. a space probe
C. a crewed spacecraft
D. an unmanned space shuttle

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