Spina bifida is a developmental defect in which: Select one: a. the spinal column is severely deformed, resulting in permanent paralysis. b. nerve fibers that arise from the spinal cord do not function properly. c. an excessive amount of cerebrospinal fluid damages the spinal cord. d. a portion of the spinal cord or meninges protrudes outside of the vertebrae.

answer:

Spina bifida is a birth defect in which there is incomplete closing of the spine and membranes around the spinal cord during early development in pregnancy. ... Myelomeningocele, also known as open spina bifida, is the most severe form.

Explanation:

when it is at an intermediate population density

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