The descending pathway from the red nucleus to the lower motor neurons is the tract.

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.

humans are now responsible for causing changes in the environment that hurt animals and plant species. we take up more space on earth for our homes and cities. we pollute habitats. human activity often changes or destroys the habitats that plants and animals need to survive.