The development of a new species is called speciation
hope this helped
The correct answer is fetal Alcohol syndrome.
Fetal Alcohol Syndrome is termed as the worst alcohol spectrum to a maternal.
Descending tracts are the pathways by which motor
signals are pass through from the brain to lower motor neurones. Thus, all
the neurones within the descending motor system are classed as upper motor
neurones. The lower motor neurones then directly innervate muscles to produce
movement. Their cell bodies are found in the cerebral cortex or the brain stem,
with their axons remaining within the CNS.
