The biosphere is everything. the whole planet. so all of the above is right
Excitatory neurotransmitters cause the neuron to fire, and Inhibitory neurotransmitters cause the neuron not to fire.
Impulses are the signals passed from one neuron to another on the action of a stimulus. The impulses passed can be electrical or chemical. Neurotransmitters are the chemical molecules that help in the transfer of impulses between two neurons.
Chemicals like epinephrine, norepinephrine, and glutamate when released from the synaptic cleft of one neuron activate the receptors of other neurons, thereby initiating the other neuron to fire. These chemicals are called excitatory neurotransmitters.
Chemicals like GABA and glycine, when released from the synaptic cleft of one neuron do not activate the receptors of other neurons and hence the neurons will not fire the impulse. These chemicals are called inhibitory neurotransmitters.
To know more about neurotransmitters, visit
brainly.com/question/26387085
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That is when extinction occurs. Hope I helped!
1.) <span>Abelhas, ir, flor, flor, obter, néctar
</span>2.)
<span>Um certo tipo de bactérias vive no intestino humano
</span><span>Desculpe, as palavras podem ser estranhas. Eu usei o Google Tradutor:)</span>
•Photosynthesis is an important part of the carbon cycle - <u>True.</u>
may this helps you
bye
