<span>The probability of an action potential being propagated from neuron to neuron is increased when the postsynaptic neuron's signal is in an excitatory state. During this state, the action potential of a presynaptic neuron increases the probability of transmission of a signal to the postsynaptic neuron.</span>
<span>A to recycle carbon dioxide in the atmosphere</span>
Food, shelter, water, are some things a squirrel will need to survive