<span>All of the following result from overgrazing in semiarid regions except REGENERATION OF GRASSES
</span>Hope that helps you out!
The synapses that are nearer to the axon hillock would bring the initial segment closest to the threshold based on spatial summation.
<h3>What is neuron synapsis?</h3>
In neurosciences, the term synapsis makes reference to the connection between two nerve cells (neurons).
Synapsis is produced by the connection between axons and dendrites among different neurons.
Spatial summation refers to the start (trigger) of the action potential in neurons via two or more presynaptic cells.
Learn more about neuron synapsis here:
brainly.com/question/26387085
